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If your 1995-2004 Toyota Tacoma is showing reduced power, ticking exhaust noise, or a check engine light related to leaks, the exhaust manifold is a likely culprit. Picking the right exhaust manifold matters for engine performance, emissions, and long-term durability — especially on Tacomas that see heavy use, towing, or off-road duty. This guide presents six shortlisted exhaust manifolds that suit the 1995-2004 Tacoma application and explains the installation, common failure modes, and what to expect from each option. We evaluate fitment, flange and gasket sealing, material and heat resistance, and expected service life to help you pick the right replacement for your Tacoma. Read on to see why these options made the list and what to prioritize for your vehicle's driving needs.
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Top Picks at a Glance
| Best Overall The best all-around choice for most situations | KAYULONE Exhaust Manifold Kit 674-464 for Toyota 1994–2001 L4 2.4/2.7L |  |
| Best Quality Built to a higher standard if you want something more solid | ARykctpGP Stainless Steel Manifold Header for 1995–2001 Tacoma 2.4L/2.7L L4 |  |
| Best Value The sweet spot between price and what you get | maXpeedingrods Exhaust Manifold Kit for Toyota 4Runner/T100/Tacoma L4 2.7L/2.4L |  |
| Best Budget The cheapest option that still gets the job done reliably | TOM Exhaust Manifold Kit with Gasket and Hardware |  |
| Highest Rated A top-rated pick with lots of positive feedback | Dorman 674-464 Exhaust Manifold Kit with Gaskets and Hardware |  |
| Most Popular A crowd favorite that many people choose with confidence | AngyMeck Exhaust Manifold and Gasket Kit for 1995–2001 Toyota Tacoma / 1996–2000 4Runner / 1994–1998 T100 |  |
KAYULONE Exhaust Manifold Kit 674-464 for Toyota 1994–2001 L4 2.4/2.7L
| Compatibility | Toyota L4 2.7L and L4 2.4L (listed years) |
|---|---|
| Type | Exhaust Manifold |
| Material | Cast Iron |
| Includes | Gasket, mounting hardware, heat shield |
| Fit | Direct Fit |
This KAYULONE exhaust manifold kit is a direct-fit replacement for Toyota 4-cylinder 2.4L and 2.7L engines covering many Tacoma, 4Runner, and T100 years within the listed range. Built from cast iron and supplied with gaskets, mounting hardware, and a heat shield, it aims to match factory fit and withstand high exhaust temperatures. In practical use it replaces a cracked or warped factory manifold to restore exhaust routing, prevent leaks, and maintain engine performance and emissions. The direct-fit approach reduces installation time for a mechanically skilled DIYer or shop, and the included hardware means fewer missing-part surprises. Limitations are typical for replacement cast-iron manifolds: it is heavier than some aftermarket stainless options and will not improve flow or horsepower compared with performance headers. Buyers should also confirm exact year and emissions configuration before ordering to ensure correct fitment.
Best for: Buyers seeking a practical, factory-style replacement to restore proper exhaust sealing and emissions on mid 1990s to early 2000s Toyota 4-cylinder trucks and SUVs who prioritize reliability and straightforward installation.
Less Ideal for: Drivers looking for performance gains, lighter-weight components, or custom exhaust tuning should consider performance headers or stainless options instead.
- Direct-fit design with included gaskets and mounting hardware for simpler installation
- Cast iron construction offers durability and high heat resistance
- Includes heat shield to protect nearby components and match factory layout
- Supplied to match original port shape and engine fitment for easier alignment during install
- Cast iron construction is heavier and not aimed at improving exhaust flow or power
Verdict: A durable, factory-style direct-fit cast-iron manifold kit that restores exhaust sealing and emissions compliance for mid 1990s–early 2000s Toyota 4-cylinder vehicles.
ARykctpGP Stainless Steel Manifold Header for 1995–2001 Tacoma 2.4L/2.7L L4
| Material | 304 Stainless Steel |
|---|---|
| Fitment | 1995-2001 Tacoma 2.4L/2.7L L4 |
| Finish | Polished |
| Installation | Direct bolt-on, includes hardware and gaskets |
This stainless steel manifold header is a direct replacement for 1995–2001 Tacoma 2.4L and 2.7L L4 engines and is aimed at drivers wanting a durable, performance-focused exhaust upgrade. Constructed from T-304 stainless steel with TIG welds and CNC-machined flanges, it resists corrosion and is built to hold shape under typical exhaust temperatures. The polished finish and smooth runners are intended to improve exhaust flow, which can help with throttle response and marginal gains in horsepower and efficiency. Installation uses factory mounting points and includes gaskets and hardware for a bolt-on fit that many DIYers can handle with standard tools. Limitations include that performance gains will depend on the rest of the exhaust system and engine tune, and this is an aftermarket compatible part rather than a factory-sourced unit. Fitment is confined to the specified Tacoma four-cylinder models, so verify engine code and year before purchasing.
Best for: Buyers focused on extracting modest performance and improved exhaust flow from a 1995–2001 Tacoma L4 without major fabrication; suitable for hands-on owners comfortable installing parts themselves or working with a local shop.
Less Ideal for: Drivers seeking large horsepower gains without additional tuning or exhaust upgrades should consider more comprehensive performance packages or different manifold designs.
- T-304 stainless construction for improved corrosion resistance and durability
- CNC-machined flanges and TIG welding for better fit and leak resistance
- Polished runners designed to promote smoother exhaust flow and potential performance gains
- Direct bolt-on design with included gaskets and hardware for straightforward installation
- Performance improvement depends on complementary upgrades and tuning rather than being guaranteed on its own
Verdict: A durable T-304 stainless bolt-on header that improves exhaust flow for modest performance gains on 1995–2001 Tacoma four-cylinder trucks.
maXpeedingrods Exhaust Manifold Kit for Toyota 4Runner/T100/Tacoma L4 2.7L/2.4L
| Compatible engines | L4 2.7L, 2.4L |
|---|---|
| Fitment years | Toyota 4Runner 1996-2000, T100 1994-1998, Tacoma 1995-2000 |
| Material | Cast iron |
| Manufacturer part number | QE91LL |
This maXpeedingrods exhaust manifold kit replaces the factory manifold on 2.7L and 2.4L inline-4 Toyota engines from the mid 1990s to 2000, restoring proper exhaust flow and sealing. Made from heavy-duty cast iron, the kit is intended for direct replacement use during engine repair or gasket failure and includes the manifold and gasket(s) shown. In use it performs like a stock-style manifold: it bolts up to the cylinder head, routes exhaust gases to the downstream system, and resists heat and corrosion better than thinner aftermarket castings. The practical benefits are straightforward: it returns engine backpressure and drivability to factory levels and helps prevent exhaust leaks that cause noise and performance loss. Limitations are that it is a direct-fit stock-style part rather than a performance header, so it will not increase power beyond factory expectations, and fitment applies specifically to the listed Toyota models and engine sizes only. Buyers should also verify part numbers to match their vehicle during installation.
Best for: Buyers who prioritize a durable, budget-conscious repair to restore factory exhaust function and eliminate leaks on mid-1990s Tacoma-era inline-4 engines.
Less Ideal for: Enthusiasts seeking performance gains or custom exhaust tuning should look at dedicated header upgrades instead.
- Heavy-duty cast iron construction for corrosion and heat resistance
- Direct-fit design for 2.7L and 2.4L Toyota L4 engines to simplify installation
- Includes gasket(s) so you can replace the manifold and seal in one service
- Not a performance header so it will not increase horsepower beyond factory levels
Verdict: A durable, factory-style cast-iron manifold kit that restores proper exhaust sealing and drivability for mid-90s Toyota 2.4L and 2.7L inline-4 engines.
TOM Exhaust Manifold Kit with Gasket and Hardware
| Material | Cast Iron |
|---|---|
| Gasket Included | Yes |
| Mounting Hardware Included | Yes |
| Port Shape | Round |
| Interchange Part Numbers | 1714175030, 327-58679, 674-464 |
This TOM exhaust manifold kit replaces a worn or cracked manifold on Toyota 2.4L and 2.7L 1994–2001 engines and ships with the gasket and mounting hardware needed for installation. Built from cast iron, the manifold is intended to withstand high underhood temperatures and restore a sealed exhaust path to reduce leaks and noise. The kit includes three studs, six nuts, and a stamped heat shield which simplifies reassembly and helps protect nearby components. Typical use is a direct replacement during an exhaust repair or when swapping a leaking manifold for a quieter, more reliable connection to the exhaust system. Because it is a full kit you avoid sourcing separate gaskets or fasteners, saving installation time. Limitations are that fitment targets older Toyota inline-four engines only and professional installation or solid mechanical experience is recommended since exhaust work requires proper torque and leak checking. Build quality appears sturdy for a budget-focused option, but it is not presented as a premium performance upgrade.
Best for: Buyers who need a cost-effective, complete replacement manifold for routine repair or to stop exhaust leaks on older Toyota 2.4L or 2.7L engines and who prioritize getting a ready-to-install kit over premium performance upgrades.
Less Ideal for: Drivers seeking a performance-oriented header or someone who wants a universal or multi-vehicle manifold should look at dedicated performance options instead.
- Includes gasket, studs, nuts, and heat shield so no extra parts are needed for a standard replacement
- Cast iron construction designed to tolerate exhaust temperatures and resist cracking compared with thin stamped parts
- Direct-fit design for the specified Toyota 2.4L and 2.7L engines simplifies installation and alignment
- Fitment is limited to specific older Toyota engines and chassis years so it is not universal
- Not marketed as a performance part so it does not improve flow or horsepower
Verdict: A complete, budget-friendly cast-iron replacement manifold kit that provides the parts needed to fix exhaust leaks on older Toyota 2.4L and 2.7L engines.
Dorman 674-464 Exhaust Manifold Kit with Gaskets and Hardware
| Manufacturer | Dorman Products |
|---|---|
| Model | 674-464 |
| Bolt Pattern (Number of Holes) | 10 |
| Compatible Vehicles | Toyota 4Runner 1996-2000; T100 1994-1998; Tacoma 1995-2001 |
The Dorman 674-464 is a replacement exhaust manifold kit intended to restore a leaking or cracked factory manifold on older Toyota trucks. It ships with the gaskets and downpipe hardware needed for a one-order repair, which speeds installation and reduces trips to the parts store. The part is reverse-engineered to match factory fit and is described as precision-engineered and machined for reliable sealing. In real-world use it is installed as a direct swap on compatible 1990s and early 2000s Toyota engines to eliminate exhaust leaks and restore normal exhaust routing and emissions performance. Buyers report mostly straightforward installation and good fit, though a minority experienced missing studs, damaged gaskets from shipping, or cosmetic heat shield issues. The manifold is an aftermarket stamped/machined unit rather than a high-end ceramic-coated or cast performance piece, so it prioritizes value and serviceability over long-term performance upgrades. For a reliability-focused repair on an older Tacoma, this kit delivers a complete replacement that simplifies the job, but check the box contents before installation and be prepared to source a missing fastener if needed.
Best for: Buyers who need a dependable, no-frills replacement to stop leaks and restore factory exhaust function on older Toyota trucks and want a kit that minimizes additional parts purchases.
Less Ideal for: Do not choose this if you are seeking a performance upgrade, long-life ceramic coating, or a premium cast manifold aimed at increased flow or high-heat durability.
- Includes required gaskets and downpipe hardware for a single-order, complete repair
- Designed to match factory fit and function for specified Toyota models
- Machined construction intended to resist warping and provide durable sealing
- Simplifies installation for DIYers and repair shops by including necessary parts
- Some customers report missing studs or damaged packing which can require sourcing small fasteners
- Aftermarket stamped/machined design is not a high-end coated or performance manifold
Verdict: A complete, factory-fit replacement kit that makes a reliable, value-focused repair for older Toyota Tacomas without needing extra gaskets or hardware.
AngyMeck Exhaust Manifold and Gasket Kit for 1995–2001 Toyota Tacoma / 1996–2000 4Runner / 1994–1998 T100
| Compatible Models | 1995-2001 Tacoma; 1996-2000 4Runner; 1994-1998 T100 |
|---|---|
| Material | Cast Iron |
| Fitment Type | Direct Replacement |
| Gasket Included | Yes |
| Manufacturer | AngyMeck |
This AngyMeck kit supplies a cast-iron exhaust manifold plus a matching manifold gasket intended as a direct replacement for specified 2.4L and 2.7L Toyota inline-4 applications. It is used to replace a cracked or leaking manifold or to restore a worn exhaust seal; installation is typical for a home mechanic or shop and follows standard manifold bolt and gasket procedures. The material and build match factory-style durability, and several buyer reports say fitment is accurate for the covered Tacoma, 4Runner, and T100 years. Some units arrive with machining burrs or rough interior surfaces, so a quick cleanup or inspection before installation can help avoid loose metal entering the exhaust stream. The kit is sold with one gasket and is promoted as easy to install; the seller also mentions a one-year support period. If you value correct fit and a factory-style replacement at a reasonable cost, this kit covers the basic needs for restoring exhaust sealing and function on the listed Toyota models.
Best for: Buyers who prioritize correct fit and a factory-like replacement with supporting user feedback and want a straightforward repair for common exhaust leaks on these Toyota models.
Less Ideal for: Shoppers seeking a performance or long-tube aftermarket header or a finished, show-quality casting should consider specialty options instead.
- Cast iron construction for factory-style durability.
- Includes a matched manifold gasket for one straightforward replacement.
- Direct-replacement fitment for the listed 1995–2001 Tacoma, 1996–2000 4Runner, and 1994–1998 T100 models.
- Multiple buyer reports note accurate fit and satisfactory performance after install.
- Some parts show rough machining or burrs that may require light cleanup before installation.
Verdict: A practical, factory-style cast-iron manifold and gasket kit that reliably restores exhaust sealing and fitment on the covered Toyota Tacoma, 4Runner, and T100 years.
Choosing the Right 1995-2004 Toyota Tacoma Exhaust Manifold: Key Factors to Consider
Material and Heat Resistance
Exhaust manifolds must survive repeated heat cycles and resist corrosion over many years. Materials like cast iron and certain stainless alloys each have trade-offs in heat tolerance, cracking resistance, and weight. For a 1995-2004 Tacoma, material choice affects long-term sealing, because thermal expansion differences between the manifold and cylinder head can loosen fasteners or warp flanges.
A material that resists surface oxidation will also reduce the chance of flange warpage and gasket failure. Consider how you use the Tacoma; frequent towing or trail driving increases thermal stress and favors more heat-tolerant materials. Better heat resistance usually means less frequent need for retorquing bolts and fewer gasket replacements.
Flange Fitment and Machining
Correct flange alignment and a flat, machined sealing surface are critical to prevent exhaust leaks. On the 1995-2004 Tacoma, small misalignments can create high-stress points that lead to gasket blowouts or header cracks. A well-machined flange reduces installation headaches and lowers the risk of exhaust leaks around the head-to-manifold junction.
Inspect whether a replacement manifold offers pre-machined flanges or requires deck machining during installation. Manifolds that include precise bolt hole locations and consistent port spacing minimize the need for adjustments and increase the likelihood of a leak-free fit on the first install.
Gasket Interface and Hardware
The gasket and mounting hardware are as important as the manifold itself for a reliable seal. Properly matched gaskets compensate for minor surface imperfections and thermal expansion. On these Tacomas, using the recommended gasket type and grade can prevent early exhaust manifold gasket failure, which is a common service item.
Check whether the replacement manifold requires specialized bolts, studs, or torque sequences. Corrosion-resistant hardware and correct torque specs reduce future loosening. Also consider manifolds that allow the use of OEM-style gaskets or include upgraded multi-layer steel gaskets for better longevity.
Resistance to Cracking and Stress
Cracked manifolds are a frequent cause of exhaust noise, poor engine performance, and potential emissions issues. Design features that reduce stress concentration, such as smoother bends and thicker webbing at junctions, help prevent cracks. For Tacomas used off-road or for towing, these design considerations become more important because of repeated thermal and mechanical loading.
A replacement manifold with proven resistance to crack propagation will reduce the need for repeated repairs. Look for construction details and material processing that demonstrate attention to stress relief and fatigue life.
Installation Complexity and Required Modifications
Installation scope ranges from simple bolt-on swaps to jobs that require temporary removal of accessories or partial exhaust disassembly. For the 1995-2004 Tacoma, accessibility to manifold bolts can be tight; some replacements require manifold heat shields to be removed or alternator brackets to be loosened. Assess whether the chosen option needs special tools, exhaust realignment, or additional parts like new studs or nuts.
Minimizing modification keeps labor time down and reduces the chance of introducing exhaust leaks. If you plan to do the work yourself, favor direct-fit options with clear instructions and standard fasteners.
Compatibility With Emission and Sensor Locations
Many Tacomas in this year range have oxygen sensors and exhaust routing tied to emissions systems. A replacement manifold must preserve proper sensor ports and alignment to avoid triggering diagnostic codes or creating backpressure issues. The location and thread type of sensor ports should match the vehicle's original specifications.
If a manifold changes the position of a sensor or eliminates a port, you may need adaptors or wiring adjustments that complicate installation. Ensuring direct compatibility with the factory sensor layout simplifies diagnostics and maintains proper engine management operation.
Common Exhaust Manifold Symptoms on 1995-2004 Tacomas
Recognizing early symptoms helps prevent more expensive repairs. Typical signs include a ticking or tapping sound during cold starts that grows with engine speed, decreased throttle response or small power loss, and a distinct exhaust smell in the engine bay. You may also see soot around the manifold flange or a visible crack on inspection.
Engine diagnostic codes related to oxygen sensor readings or fuel trimming can sometimes point to leaks at the manifold. Addressing small leaks early often prevents downstream catalytic converter stress and keeps emissions functioning normally.
- Ticking noise that changes with RPM
- Rough idle or reduced low-end power
- Soot or black deposits at flange seams
- Check engine light with AFR or O2 codes
Diagnosis: How to Inspect and Confirm a Leak
A methodical inspection can confirm whether the manifold or its gasket is the source of the problem. Start with a visual check for hairline cracks, flaking metal, or soot around the head-to-manifold joint. With the engine cool, feel for loose fasteners and examine the gasket area for signs of exhaust escape.
For a running diagnosis, short bursts of light-pressure smoke or a careful listening test with a mechanic's stethoscope while someone revs the engine can reveal leaks. Another practical check is to apply soapy water around suspected joints while the engine is idling; escaping exhaust can produce visible bubbles. Always follow safety procedures and do these tests in a well-ventilated area.
- Visual inspection for soot and cracks
- Hand-check for loose bolts with cool engine
- Use a stethoscope or listening tool while revving
- Consider smoke tests or soapy water checks
When to Repair Versus Replace the Manifold
Minor warpage or small gasket leaks can sometimes be resolved by replacing the gasket and installing new hardware with proper torque sequencing. However, visible cracks, extensive corrosion, or repeated gasket failures are indications that a full manifold replacement is the more durable choice. On a Tacoma that sees heavy duty use, replacing the manifold can prevent recurring labor and maintain engine performance.
If a crack is localized and the material is cast iron, welding repairs are possible but depend on the shop's skill and the manifold's heat treatment. Welding may not restore original flatness or structural integrity, so many owners prefer a new unit when reliability is a priority.
- Gasket replacement for small leaks and surface imperfections
- Consider full replacement for cracks, heavy corrosion, or repeated failure
- Welding is an option but may not restore factory sealing surfaces
Installation Considerations and Expected Labor
Replacement on a 1995-2004 Tacoma typically requires removing heat shields and possibly loosening accessory brackets for access. Bolt threads can be corroded; having replacement studs or heat-resistant bolts on hand reduces downtime. Proper torque sequencing and re-torquing after initial heat cycles are essential to maintain a seal.
Labor varies with whether the job is done DIY or by a shop, and with the engine layout in your Tacoma. Prepare for time spent cleaning mating surfaces and ensuring correct gasket placement to avoid misalignment. Where sensors are involved, thread sealant or anti-seize compound on sensor threads can prevent future removal difficulty.
- Remove heat shields and loosen nearby accessories as needed
- Inspect and replace corroded studs or bolts
- Torque to spec and re-torque after initial heat cycles
Options That Require Swapping or Exhaust Modifications
Some higher-performance or alternative-design manifolds can require exhaust flange swaps or minor modifications to the downpipe. If you are considering a swapped manifold, plan for inspection of the exhaust alignment and potential additional gaskets. These modifications increase complexity and labor, and can affect emissions equipment placement.
If you prefer to avoid additional work, choose a direct-fit option that preserves factory mounting points and sensor locations. Swapping to a different flange style should only be contemplated when the benefits clearly outweigh the extra installation effort.
- Swapped manifolds may need downpipe flange or gasket changes
- Modified routing can affect emissions sensor placement
- Direct-fit options minimize extra labor
Maintaining the Manifold After Installation
After installing a replacement manifold, periodic checks during routine maintenance help catch issues early. Inspect bolt torque after the first few heat cycles, look for new soot deposits, and monitor engine performance for any shift in idle or throttle response. Treat fasteners with anti-seize and use corrosion-resistant hardware to simplify future servicing.
Keeping the engine bay clean makes visual detection of new leaks easier. If you frequently tow or drive in corrosive environments, consider scheduled inspections more often than standard service intervals.
- Re-check torque after initial heat cycles
- Use anti-seize on sensor threads and corrosion-resistant bolts
- Inspect for soot or fresh discoloration during routine maintenance
Still looking for the perfect fit?
Select your Toyota Tacoma configuration to see the most relevant Exhaust Manifolds recommendations
How We Chose the Best 1995-2004 Toyota Tacoma Exhaust Manifold
We focused on criteria that matter most for a 1995-2004 Toyota Tacoma owner replacing an exhaust manifold. Primary filters included direct fitment to the specified year range and original mounting points, compatibility with the engine and exhaust routing used on those Tacomas, and flange alignment to avoid exhaust leaks. We prioritized manifolds made from materials known to withstand heat cycles common in Tacoma service, such as high-grade cast iron or heat-treated stainless, and evaluated flange flatness and precision machining to reduce gasket failures. Durability and corrosion resistance were weighed heavily because many Tacomas operate in varied climates and off-road conditions. Ease of installation, availability of correct gaskets and hardware, and whether the design required modifications or exhaust swapping were also considered. We excluded any options that required extensive exhaust back-pipe modification, frame relocation, or nonstandard manifold-to-header adapters. Finally, we checked reported longevity and common failure modes to emphasize solutions that minimize repeat labor and sealing issues.
Our full evaluation process is outlined in our review methodology.
FAQ
What are the most common exhaust manifold symptoms on a Tacoma from 1995-2004?
Common symptoms include a ticking noise that changes with engine speed, visible soot at the flange, decreased throttle response, and diagnostic codes related to oxygen sensors or fuel trims. Visual inspection often reveals leaks or cracks around the manifold-to-head joint.
Can I replace just the gasket or do I need a new manifold?
It depends. If the flange is flat and there are no cracks or heavy corrosion, replacing the gasket and hardware can fix leaks. If you see a crack, significant warpage, or repeated gasket failures, a full manifold replacement is usually the more reliable solution.
How do I diagnose an exhaust manifold leak on my Tacoma?
Start with a visual check for soot and cracks with the engine cool. Use a listening test or mechanic's stethoscope while revving the engine to locate leaks. Smoke testing or soapy-water checks around suspected joints can confirm escaping exhaust, taking proper safety precautions.
Is welding a cracked manifold a good long-term fix?
Welding can be a temporary or permanent repair depending on the crack location, material, and shop skill. Welding may not restore flange flatness or original heat treatment, so while it can extend life, replacement is often preferred for long-term reliability.
Will replacing the manifold affect my oxygen sensors or emissions system?
A direct-fit replacement that preserves sensor ports and thread sizes should not affect the emissions system. If a manifold changes sensor placement or requires adaptors, you may need to address sensor alignment or wiring to avoid diagnostic codes.
How much extra work is involved if the replacement requires an exhaust swap?
Manifolds that need downpipe flange changes or different routing increase labor and may require new gaskets or minor welding. These swaps can add time and complexity, so many owners opt for direct-fit units to minimize additional work.
Final Verdict
For a 1995-2004 Toyota Tacoma, prioritize a manifold that offers correct flange machining, durable material, and proper gasket interface to avoid recurring leaks and labor. Balance the desire for improved flow against the added complexity of any modification that requires exhaust or sensor relocation. Choosing a direct-fit, well-machined replacement with corrosion-resistant hardware will typically provide the best combination of reliability and serviceability for everyday use and more demanding duty.
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- Check out all Toyota Tacoma parts & accessories
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