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If you drive a Chevrolet Traverse, choosing the right oil cooler lines matters for engine longevity and reliable cooling under load. Worn or damaged lines can cause leaks, pressure loss, or contaminated oil circulation that affect performance and component life. This guide highlights six shortlisted oil cooler lines selected for fitment and durability. It explains the evaluation criteria used and what to watch for so you can pick the option that matches your repair or maintenance needs.
Looking for other parts? See all Chevrolet Traverse parts & accessories.
Top Picks at a Glance
| Best overall The best all-around choice for most situations | Generic 6AN 70" Stainless Steel Braided Transmission Cooler Line Kit |  |
| Best Value The sweet spot between price and what you get | Psrorkeu Transmission Oil Cooler Line 624-233 Compatible with 2008-2019 Chevrolet Traverse |  |
| Best budget The cheapest option that still gets the job done reliably | HZ-MONSTAR AN6 52" Stainless Steel Braided Transmission Cooler Line Kit |  |
| Highest Rated A top-rated pick with lots of positive feedback | A-Premium Transmission Oil Cooler Line Hose Assembly |  |
| Most Popular A crowd favorite that many people choose with confidence | GM Genuine Parts Transmission Oil Cooler Line (15817233) |  |
| Best Seller A high-volume bestseller chosen again and again | A-Premium Transmission Oil Cooler Line Hose Assembly (Inlet) |  |
1. Generic 6AN 70" Stainless Steel Braided Transmission Cooler Line Kit
| Material | Stainless Steel / PTFE |
|---|---|
| Size | 70 Inches |
| Fitting Type | 6AN (-6AN) |
This 6AN stainless steel braided line kit supplies two long 70-inch lines and assorted AN fittings intended to route transmission fluid between the transmission and an external cooler. For a Chevrolet Traverse the kit is typically used to add or replace transmission cooler plumbing when installing an auxiliary cooler or repairing damaged hard lines. The stainless braid over a PTFE core gives flexibility for tight routing while resisting abrasion and corrosion, and the included 90-degree fittings simplify connections in confined engine bays. In practice the kit helps lower transmission temperatures during towing or repeated highway runs, which can prolong transmission life. Expect to need a few vehicle-specific adapters for the Traverse if the factory fittings are different from -6AN thread types, and some buyers report occasional fitment or quality variances that require swapping a fitting or reworking threads. Installation is straightforward for anyone comfortable with basic fluid-line work, but check for leaks and proper routing after first drive to avoid chafing or pressure issues.
Best for: A balanced all-round buyer who wants a cost-effective way to add or replace transmission cooler lines on a Chevrolet Traverse to improve cooling for everyday driving and occasional towing.
Less Ideal for: Buyers seeking a direct factory-replacement line set with guaranteed plug-and-play factory fittings should consider vehicle-specific OEM-quality hoses instead.
- Stainless steel braid with PTFE core resists corrosion and stays flexible for tight routing.
- Includes 70-inch length suitable for reaching an auxiliary cooler from the transmission.
- Comes with multiple AN fittings including 90-degree swivels to simplify connections in confined spaces.
- Durable construction that can handle high fluid pressure when properly installed.
- Universal AN6 sizing may require vehicle-specific adapter fittings for proper connection to Traverse factory ports.
- Quality control varies between units so nuts/threads may need cleaning or replacement in some cases.
Verdict: Good value braided 6AN cooler lines for a Traverse when you need flexible, corrosion-resistant plumbing, but expect to source adapters for exact factory fitment.
2. Psrorkeu Transmission Oil Cooler Line 624-233 Compatible with 2008-2019 Chevrolet Traverse
| Item Type | Oil Cooler Line |
|---|---|
| Condition | Brand New |
| OE Number | 624-233, 5801492, 25880047 |
| Quantity Sold | One Piece |
This transmission oil cooler line replaces the factory cooler line on Chevrolet Traverse models from 2009 to 2019 and is intended to restore proper fluid routing between the radiator and transmission. It is sold as a single brand-new piece with high-strength crimped fittings and is pressure-tested at the factory to reduce the chance of leaks. Installation is typical for a cooler line swap and uses the same routing and connection points as the original, making it suitable for routine repair or mid-life maintenance. The practical benefit is clear: replacing a damaged or leaking line prevents transmission overheating and costly drivetrain damage. Limitations are that buyers must verify OE numbers and image fitment before ordering because multiple model-year routing differences exist, and the listing does not include additional hoses, clamps, or installation hardware beyond the single line.
Best for: Practical owners who prioritize cost-effective, reliable repairs and want a straightforward replacement part to maintain transmission cooling on a mid-2009 to 2019 Traverse.
Less Ideal for: Shoppers who prefer a complete repair kit with clamps and hoses or who are unsure about matching OE part numbers should consider alternatives or professional fitment assistance.
- Designed as a direct replacement for Traverse model years 2009–2019 to restore original fluid routing
- High-strength crimped fittings and factory pressure testing reduce the risk of leaks
- Sold as a single new unit so you replace the failed component without extra parts
- Helps prevent transmission overheating and potential drivetrain failure when installed correctly
- Fitment varies by year and routing so you must confirm OE numbers and pictures before purchase
- Does not include extra hoses, clamps, or installation hardware which may be needed during replacement
Verdict: A budget-minded, pressure-tested replacement cooler line that restores transmission cooling for 2009–2019 Chevrolet Traverse models.
3. HZ-MONSTAR AN6 52" Stainless Steel Braided Transmission Cooler Line Kit
| Brand | HZ-MONSTAR |
|---|---|
| Material | Stainless Steel braided over PVC liner |
| Nominal Wall Thickness | 0.1875 inches |
| Item Length | 52 Inches |
This HZ-MONSTAR AN6 line kit provides two flexible stainless steel braided hoses with multiple adapters for routing transmission cooler lines. It is typically used to replace rigid steel or factory rubber lines when adding an auxiliary cooler or repairing a leaky feed/return line on a vehicle. The braided exterior over a PVC inner liner gives abrasion resistance and better heat tolerance than plain rubber hose, and the kit includes AN6 inverted flare ends plus a selection of NPT adapters to fit different fittings. For Chevrolet Traverse owners looking for a low-cost upgrade, the kit makes plumbing an aftermarket cooler or replacing old lines straightforward and looks more durable under the hood. Limitations are that the kit is a universal-length solution rather than vehicle-specific so some trimming or fitting decisions are required, and installation may need basic tools and some plumbing skill to avoid leaks at adapter joints.
Best for: Budget-conscious buyers who want a cost-effective, more durable alternative to factory rubber cooler lines and plan to add or replace a transmission cooler on a Chevrolet Traverse.
Less Ideal for: Owners seeking a plug-and-play, vehicle-specific replacement with pre-bent lines or those uncomfortable with cutting, fitting, and sealing hoses should consider a factory-style replacement instead.
- Stainless steel braid improves abrasion resistance and engine-bay durability.
- Includes a variety of AN6 and NPT adapters to adapt to common cooler fittings.
- Flexible hoses simplify routing compared with rigid lines for aftermarket cooler installs.
- PVC inner liner compatible with transmission fluid and reduces permeation compared with simple rubber lines.
- Not a vehicle-specific pre-measured kit so may require trimming and extra fittings for a clean Chevrolet Traverse installation.
- Adapter joints mean more potential leak points if not tightened or sealed correctly.
Verdict: A low-cost, flexible braided AN6 hose kit that upgrades durability and routing for a Chevrolet Traverse but requires some trimming and fitting work for a tidy install.
4. A-Premium Transmission Oil Cooler Line Hose Assembly
| Material | Metal |
|---|---|
| Hose Maximum Pressure | 100 PSI |
| Fitment Type | Direct Replacement |
| Manufacturer Part Number | APOCL243 |
| OEM Part Number | 10353007, 15951955, 25796190, 25880047, 624-233, 624233, 5801492 |
This A-Premium transmission oil cooler line is a direct-replacement assembly meant to carry coolant from the radiator to the transmission on compatible GM crossovers. It is typically used when the original cooler line cracks, leaks, or corrodes and needs a one-for-one swap. The part is metal, fits specific Buick, Chevrolet, GMC, and Saturn models within the listed years, and is supplied with bends and end fittings to match factory routing. Buyers will appreciate that it installs like a factory-style line and addresses common failure points where the original tubing ages. Reported fitment is generally accurate for the stated vehicles, and the manufacturer backs the part with a one-year unlimited-mileage guarantee. Important limitations are that fit depends on selecting the correct inlet/outlet orientation and matching existing bends, and some users noted minor differences at the transmission connection that may require attention during installation. This is a practical repair part for those replacing a failed cooler line rather than an upgrade or performance modification.
Best for: A reliability-focused buyer who wants a practical, factory-style replacement to restore cooling to the transmission and minimize the chance of repeat leaks on daily-driver Chevy Traverse vehicles.
Less Ideal for: Not a good choice for someone seeking a performance upgrade, custom routing, or a universal adjustable line; installers who prefer complete OEM parts tracing may prefer dealer-sourced replacements.
- Direct-replacement design with factory-style bends and fittings for correct routing
- Metal construction suitable for resisting typical age-related corrosion
- Covers relevant model years for Chevrolet Traverse and related GM crossovers
- Backed by a one-year unlimited-mileage guarantee from the maker
- Fitment requires careful selection of the correct line and matching bends to the vehicle
- Some users reported a different transmission connection diameter compared with the original
Verdict: A practical, factory-style metal cooler line that reliably replaces a failed unit for Chevrolet Traverse owners who prioritize restoring OEM routing and leak-free operation.
5. GM Genuine Parts Transmission Oil Cooler Line (15817233)
| Brand | GM GENUINE PARTS |
|---|---|
| Material | Rubber |
| Manufacturer | ACDelco |
| Model | 15817233 |
| Liquid Volume | 0.12 Liters |
This GM Genuine Parts transmission oil cooler line is a direct-fit replacement intended to restore the cooling circuit on compatible GM vehicles. It replaces worn or leaking cooler hoses and installs where the original factory line routed between the transmission and radiator. The part is manufactured to GM specification and includes the rubber hose and factory-style fittings, so fit and function closely match the original assembly. Buyers will appreciate the familiar OE fitment that simplifies install and reduces guesswork when doing a DIY repair or when a shop needs a reliable replacement. Real-world reviews report straightforward installation on models like the Cobalt and HHR with no leaks when proper sealing and O-rings are used. Limitations are typical for in-vehicle cooling lines: access can be tight, some applications require reusing or replacing small clips and O-rings, and older stock may show long shelf age even when unused. Expect a simple but sometimes fiddly repair job rather than an upgrade in performance.
Best for: Convenience-driven owners who value a straightforward, factory-quality replacement that minimizes troubleshooting and returns the vehicle to service quickly.
Less Ideal for: Those seeking a performance upgrade or universal fit hoses for custom routing should look for aftermarket performance lines instead.
- Factory-quality replacement built to GM specifications for fit and function
- Includes factory-style fittings that simplify installation and sealing
- Durable rubber hose construction consistent with original equipment
- Common direct-fit for several GM compact models, reducing search time
- Installation can be awkward in tight engine bays and may require patience
- May require replacement of small O-rings or clips not included with the part
Verdict: A true GM factory-quality replacement that restores original transmission cooling function with minimal fitment guesswork.
6. A-Premium Transmission Oil Cooler Line Hose Assembly (Inlet)
| Compatible models | Chevrolet Traverse 2009-2019; Buick Enclave 2008-2019; GMC Acadia 2007-2019; Saturn Outlook 2007-2010 |
|---|---|
| Material | Metal and rubber |
| Reference numbers | 624-712, 624712, 5801399, 25790140, 25880046 |
| Fitment type | Direct Replacement |
This A-Premium inlet transmission oil cooler line replaces the factory cooler feed on compatible GM crossover SUVs and is intended for owners needing a direct replacement for a leaking or damaged line. It pairs metal fittings with a rubber hose section to match factory routing and is sold as a ready-to-install assembly. Typical use is a straightforward swap where the original line corrodes or fails; buyers report OEM-like fit on Enclave and Traverse applications. Notable features include corrosion-resistant construction, multiple reference numbers for cross-checking fit, and a one-year unlimited-mileage guarantee from the brand. Practical benefits are restored transmission cooling and reduced risk of leaks compared with an aging line, and the assembly helps avoid more expensive transmission damage. Limitations are that fitment must be verified against your vehicle year and reference numbers because a few buyers received incompatible lengths, and installation may require basic tools and modest mechanical skill for safe refrigerant- or fluid-handling precautions.
Best for: Risk-averse mainstream buyers who prioritize a reliable, factory-style replacement to restore transmission cooling without aftermarket modifications.
Less Ideal for: Do not choose this if you prefer performance-modified cooling upgrades or need a custom-length line; specialty shops or heavily modified vehicles should seek purpose-built alternatives.
- Direct-replacement design intended to match factory routing for quick swap
- Corrosion-resistant metal and rubber construction to resist leaks
- Includes multiple OEM reference numbers to confirm compatibility
- Backed by a one-year unlimited-mileage guarantee from the manufacturer
- Some buyers reported fitment or length differences requiring verification before install
- Installation requires basic mechanical skills and tools to avoid fluid leaks
Verdict: A practical, factory-style inlet transmission oil cooler line that restores cooling and leak resistance for Chevrolet Traverse and related GM SUVs.
Choosing the Right Chevrolet Traverse Oil Cooler Lines: Key Factors to Consider
Fitment And Routing
Correct fitment ensures the lines follow the factory routing and clear adjacent components. Lines that conform to original routing reduce stress from bends and prevent chafing against brackets or suspension parts. If a line is too long or too short, it can kink or pull on fittings, increasing leak risk. Verify mounting points and routing paths so the line can be secured with the same clips or brackets where possible.
Material And Heat Resistance
Oil cooler lines run near hot engine areas and must resist high temperatures and exposure to motor oil. Materials like braided stainless steel over synthetic inner hoses or high-quality EPDM compounds typically offer better longevity than plain rubber. Higher heat resistance reduces the likelihood of swelling, cracking, or premature failure. Ask for temperature ratings and oil compatibility when evaluating options.
Fittings And Connection Type
Secure fittings are vital to prevent leaks at the ends of the lines. Look for factory-style threaded fittings, O-ring sealed connectors, or OEM-matching flared ends that mate cleanly with the engine and cooler ports. Properly matched fittings reduce cross-threading and ensure the correct sealing surface. Where adapters are used, ensure they are rated for oil service and do not alter pressure characteristics.
Durability And Corrosion Resistance
Corrosion-resistant outer layers and high-quality inner liners extend service life, especially where salt or moisture exposure is common. Stainless braid, corrosion-resistant clamps, and plated fittings help maintain integrity over time. Assess construction details like braid density and liner chemistry because these affect abrasion resistance and resistance to oil breakdown.
Installation Complexity And Hardware Included
Some lines come as complete hose kits with all required fittings and mounting clips, while others are sold as single pieces. Kits that include correct-length lines, clamps, and replacement gaskets usually simplify the job. Consider whether you will need special tools, flare nuts, or O-ring replacements. A line that matches factory attachment points and includes hardware reduces installation time and error risk.
Maintenance And Leak Diagnosis
Understanding common symptoms of failing oil cooler lines helps prioritize replacement timing. Signs include visible oil at connection points, drops in oil pressure, or oil pooling under the vehicle after parking. Choose lines that make future inspection and repair straightforward, such as accessible fittings and replaceable sections that do not require full-routed replacements.
How We Chose the Best Chevrolet Traverse Oil Cooler Lines
We focused on parts and kits that restore or improve the oil cooler circuit on Chevrolet Traverse vehicles. Our selection filters prioritized correct vehicle-specific fitment, robust materials resistant to heat and oil exposure, and secure connection methods that reduce leak risk. We also considered ease of installation for typical DIYers and the availability of necessary fittings or replacement components. Excluded items included universal lines without vehicle-specific adapters, components lacking clear material specs, and options intended only for racing or heavily modified engines. The main dimensions and specifications we used to judge suitability were line routing and length tolerance, hose material and temperature rating, connector and fitting type, and compatibility with the factory oil feed and return locations.
Our full evaluation process is outlined in our review methodology.
FAQ
How do I know if my Chevrolet Traverse oil cooler lines are leaking?
You may notice oil spots where you park, wetness around the cooler or engine area, or a gradual drop in oil level between service intervals. In some cases, you might see oil on adjacent components or smell oil when the engine is hot. Visual inspection of fittings and hose sections is the first step to confirm a leak.
Can I replace just one oil cooler line or should I replace both feed and return lines?
Replacing only the failing line can be acceptable if the other line shows no signs of wear or damage. However, because both lines age together and share exposure to heat and oil, many people opt to replace both lines at the same time to minimize future labor and reduce the chance of a near-term failure on the remaining line.
What are common causes of oil cooler line failure on a Chevrolet Traverse?
Common causes include age-related material degradation from heat cycling, abrasion from contact with nearby components, corrosion of fittings, and damage from road debris. Improper installation or using incorrect fittings can also lead to premature leaks or failures.
Are aftermarket hose kits as reliable as OEM-style lines?
Aftermarket kits can be reliable when they match factory specifications for routing, fittings, and material ratings. The most dependable kits include vehicle-specific lengths, proper fittings, and clear material specs. Avoid universal hoses that require significant modification unless you plan additional professional fitting work.
What tools do I need to install or replace oil cooler lines?
Typical tools include basic hand tools like wrenches and socket sets appropriate to the fittings, line wrenches to avoid rounding flare nuts, and possibly pliers for clamps. You may also need replacement O-rings, gaskets, and thread sealants that are compatible with engine oil. Having replacement mounting clips can help restore secure routing.
Conclusion
Prioritize fitment accuracy and durable materials when choosing oil cooler lines for a Chevrolet Traverse. Correct routing, matched fittings, and good heat resistance reduce leak risk and extend service life. Balance ease of installation and the availability of replacement hardware against long-term durability. Replacing both lines together and choosing options that simplify future inspection can reduce downtime and help maintain reliable oil cooling performance.
Explore More:
- Check out all Chevrolet Traverse parts & accessories
- Explore Oil Cooler Lines Maintenance & Repair Guides
- Explore Cooling System
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