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Picking the right Scion xB engine mount affects more than just noise levels. A properly chosen mount reduces engine movement, cuts down vibration felt in the cabin, and helps protect drivetrain components over time. This guide covers the top shortlisted options for the Scion xB, each selected for specific strengths in durability, isolation, or fitment. Below we explain the criteria used to evaluate these mounts and what to expect when replacing a worn unit, then present the top picks for common use and common failure modes.
Looking for other parts? See all Scion xB parts & accessories.
Top Picks at a Glance
| Best Reviewed A top-rated pick with lots of positive feedback | NewYall Engine and Transmission Mount Kit for Scion tC (2005–2010) |  |
| Most Popular A crowd favorite that many people choose with confidence | TRQ Engine and Transmission Mount Kit (3-piece) for Scion xA/xB and Toyota Echo |  |
| Best Quality Built to a higher standard if you want something more solid | TAHIKO 3‑Piece Engine and Transmission Mount Set for Scion iA / Yaris / Mazda 2 (1.5L) |  |
| Best Budget The cheapest option that still gets the job done reliably | NewYall Engine and Transmission Mount Kit for Scion xA/xB (1.5L) |  |
| Most Sold A high-volume bestseller chosen again and again | YEHERIT Engine Motor Mount Set for Toyota Corolla/Matrix/Pontiac Vibe (1.8L) |  |
| Best Value for Money The sweet spot between price and what you get | Yllshengyu 4‑Piece Engine and Transmission Mount Kit for 2005–2010 Scion tC 2.4L (Automatic) |  |
| Best Overall The best all-around choice for most situations | loongrie Engine and Transmission Mount Kit, Set of 4 |  |
1. NewYall Engine and Transmission Mount Kit for Scion tC (2005–2010)
| Fitment | Scion tC 2.4L Automatic 2005-2010 |
|---|---|
| Material Type | Alloy Steel |
| Unit Count | 4 Count |
This kit replaces all primary engine and transmission mounts for a Scion tC 2.4L automatic and is intended to restore engine stability and reduce vibration. It includes front, front-right, rear motor mounts and a transmission mount so you can swap out worn mounts in one job without mixing brands. The mounts are alloy steel with a powder-coated finish and come as a four-count set that bolts in where the factory pieces sat. Buyers report the kit can fit like a factory replacement and noticeably reduce engine knock and vibration when installed correctly. Downsides to consider are build consistency and rubber hardness: several users found the rubber softer and some assemblies misaligned compared with factory-quality parts, which could affect long-term durability under heavier torque. Expect to inspect each mount before installation and be prepared to replace any individual piece if it shows assembly issues.
Best for: Reliability-focused buyers who prioritize restoring factory-like engine stability and quietness with a single kit replacement and prefer a practical, one-stop repair approach.
Less Ideal for: Drivers seeking exact factory-quality longevity or high-performance torque handling should consider higher-end or OEM factory-quality mounts instead.
- Complete four-piece kit replaces front, front-right, rear engine mounts and transmission mount for a single fitment job
- Alloy steel construction and powder-coated finish resist corrosion compared with bare metal replacements
- Reports of good fitment that aligns bolt holes and reduces engine knock and vibration
- Includes both engine and transmission mounts so you avoid mixing parts from different suppliers
- Some mounts have softer rubber and less material than factory parts which may limit longevity under high torque
- A few units arrived with rubber installed incorrectly or minor fitment differences requiring inspection or adjustment
Verdict A convenient, corrosion-resistant four-piece mount kit that can restore engine stability affordably but may not match OEM rubber durability for heavy-duty use.
2. TRQ Engine and Transmission Mount Kit (3-piece) for Scion xA/xB and Toyota Echo
| Fitment Vehicles | Scion xA (2004-06), Scion xB (2004-06), Toyota Echo (2000-05) – Automatic Transmission |
|---|---|
| Quantity | 3 Piece |
| Brand | TRQ |
| Manufacturer Part Number | MTA34406 |
This TRQ kit supplies an engine mount, a rear engine mount, and a transmission mount intended as direct replacements for the original parts on Scion xA, xB, and Toyota Echo models with automatic transmissions. Typical use is a complete mount refresh when vibration, drivetrain movement, or noise indicates aging mounts. The mounts come preassembled and painted for corrosion resistance and are packaged as a matched set to restore factory alignment and reduce engine shake. TRQ highlights DIY support with installation videos that simplify the process for home mechanics and can cut shop time. Practical benefits include matching mounting points for a straightforward swap and a lower cost compared with dealer parts. Some buyers report occasional fitment quirks like missing small fasteners or tight access for certain studs, and a minority have experienced early failures on unrelated vehicle models, so long-term durability can vary by application. Expect noticeably reduced vibration after installation but plan for basic tools and possibly sourcing a small bolt if a hardware piece is not included.
Best for: Buyers who prioritize convenience and want a ready-to-install, lower-cost replacement kit that makes a full mount service doable at home with minimal guesswork.
Less Ideal for: If you prefer guaranteed long-term performance from dealer-sourced parts or need a lifetime-duty heavy-use solution, consider factory-quality replacements or upgraded performance mounts instead.
- Three-piece matched kit replaces engine, rear engine, and transmission mounts together for consistent fit and reduced drivetrain movement
- Preassembled direct-replacement design simplifies installation and preserves factory alignment
- Painted/powder-coated finish helps resist corrosion for longer service life
- TRQ provides DIY installation videos to guide home mechanics through the swap
- Some units may lack a small mounting fastener and require the buyer to source a bolt
- A few users reported early failure on certain vehicles, so longevity can be inconsistent across applications
Verdict A convenient, budget-friendly matched mount kit that restores smoothness quickly for Scion xB drivers but may require minor hardware or expect variable long-term durability.
3. TAHIKO 3‑Piece Engine and Transmission Mount Set for Scion iA / Yaris / Mazda 2 (1.5L)
| Compatible Engines | L4-1.5L |
|---|---|
| Includes | Left transmission mount, rear lower torque strut, hydraulic front right engine mount |
| Manufacturer | TAHIKO |
| Part Numbers / Interchange | A42066, A4456, A4460, D10G39070A, 12371-WB001, 12305-WB002 |
This three-piece mount set replaces the hydraulic front right engine mount, left transmission mount, and rear lower torque strut to control engine movement and damp vibration under load. In practice you would swap the worn mounts to eliminate engine rocking, drivetrain clunks during acceleration and harshness passed into the cabin. The listing emphasizes steel and rubber construction with factory-quality testing and a hydraulic front mount for better vibration damping compared with a purely solid mount. That results in a smoother, quieter feel and improved stability when accelerating or shifting. Installation is typical for mount swaps and may require a lift and basic mechanical tools or a shop for torqueing and alignment. Limitations: the kit is vehicle-specific and covers Scion iA models with the 1.5L engine and compatible transmissions only, so confirm fitment before buying, and buyers expecting a performance-tuned stiff mount will find the hydraulic design favors NVH reduction over extreme rigidity.
Best for: Performance-oriented buyers who prioritize a stable, low-vibration drivetrain and want factory-quality replacement mounts to restore engine control and refine shift feel.
Less Ideal for: Buyers seeking ultra-stiff performance mounts for track use or those who need a universal fit solution across multiple different vehicle platforms should look elsewhere.
- Full three-piece set replaces both engine and transmission mounts for coordinated support
- Hydraulic front mount helps reduce vibration and cabin noise compared with solid mounts
- Manufacturer states steel and rubber materials with production testing to match factory-quality performance
- Includes torque-strut style rear mount to control engine fore-aft movement during acceleration
- Fitment is specific to certain 1.5L Scion iA/Yaris/Mazda 2 models and does not cover other variants
- Installation can require vehicle lifting and proper torque/alignment, so professional installation may be needed
Verdict A factory-quality three-piece mount kit that reduces vibration and restores drivetrain stability for 1.5L Scion iA/Yaris models, best for drivers wanting a smoother, more controlled daily drive.
4. NewYall Engine and Transmission Mount Kit for Scion xA/xB (1.5L)
| Fitment | Scion xA/xB 1.5L 2004–2006 |
|---|---|
| Set contents | Rear motor mount, right motor mount, transmission mount |
| Brand | NewYall |
This NewYall kit provides the three mounts commonly replaced together on the Scion xB 1.5L: rear motor mount, right motor mount, and transmission mount. It is intended for DIY or independent-shop installs to quiet engine movement and reduce vibration when the factory mounts wear out. The listing shows vehicle-specific fitment for the 2004–2006 Scion xB 1.5L and the kit includes the three pieces needed for a basic mount refresh. Real-world buyers report the parts restore firmness and lower vibration, but some installers note fitment and alignment fiddliness during installation and uneven welds or threaded hardware that can complicate bolting in tight spaces. Because the kit is aftermarket, expect some extra patience to align bolts and press-in components compared with a factory-quality replacement, but the parts can deliver acceptable NVH improvement at a lower cost when fitted carefully.
Best for: Cost-conscious owners focused on getting a functional, budget-friendly mount refresh for their Scion xB 1.5L who plan to install the parts themselves or have an independent shop perform the replacement.
Less Ideal for: Owners seeking an exact factory-quality replacement with guaranteed bolt‑perfect fit and maximum longevity should consider higher-end or OEM-sourced mounts instead.
- Vehicle-specific fit for Scion xB 1.5L (2004–2006) covering engine and transmission mounts
- Includes the three mounts needed for a typical replacement job so you can change all worn points at once
- Reported to noticeably reduce engine vibration and restore firmer engine positioning
- Lower-cost aftermarket option compared with dealership or premium-brand kits
- Some units may have imperfectly aligned welded nuts or pressed bolts that require extra effort to fit
- Aftermarket fit can need additional adjustment, motor support, or light rework during installation
- Mixed quality reports from users suggest variable long-term durability compared with factory-quality parts
Verdict A wallet-friendly, vehicle-specific mount kit that can restore vibration control on a Scion xB 1.5L but may require extra care during installation due to variable fitment.
5. YEHERIT Engine Motor Mount Set for Toyota Corolla/Matrix/Pontiac Vibe (1.8L)
| Fitment | 2003-2008 Toyota Corolla/Matrix 1.8L, 2003-2008 Pontiac Vibe 1.8L |
|---|---|
| Included Components | Front motor mount; Front right motor mount; Rear motor mount; Transmission mount |
| Material Type | Rubber |
This YEHERIT mount set supplies the front, front right, rear engine mounts and a transmission mount as a direct replacement kit intended to restore normal engine placement and damp vibrations. In practice the mounts are installed where the engine and trans connect to the chassis to control movement under load and reduce noise and shake during acceleration, idle, and gear changes. The mounts use a rubber-and-metal composite and arrive ready to swap in for worn factory pieces, which can noticeably improve ride comfort and perceived build quality after installation. Reported fit is generally good but some users needed to hand-tighten bolts, start the engine, and settle the motor before final torque to align holes. A few buyers noted inconsistent part appearance and the need to replace corroded bolts in rust-prone regions. The set is a budget-friendly factory-style replacement that performs well when fitted carefully, but installation may require patience and attention to hardware condition.
Best for: A risk-averse mainstream buyer seeking a low-cost, factory-style replacement to stop vibration and restore normal vehicle behavior while prioritizing proven fit and straightforward repairs.
Less Ideal for: Buyers who demand premium upgraded mounts for performance driving or those replacing mounts on heavily rusted vehicles without the ability to source or replace corroded fasteners.
- Complete four-piece kit covers engine and transmission mounting points for a one-purchase repair.
- Rubber-metal composite construction reduces engine vibration and improves driving comfort.
- Generally reported to fit factory mounting locations without modification.
- Affordable option that can restore normal drivetrain behavior without full OEM pricing.
- Some parts show inconsistent finish or arrive repainted which may indicate variable cosmetic quality.
- May require engine positioning and progressive bolt tightening during installation for proper alignment.
- Corroded or missing hardware in rust-heavy areas may need replacement before installation.
Verdict A practical, budget-friendly four-piece replacement that restores vibration control when installed carefully, but watch for variable cosmetic quality and hardware needs.
6. Yllshengyu 4‑Piece Engine and Transmission Mount Kit for 2005–2010 Scion tC 2.4L (Automatic)
| Vehicle fitment | 2005–2010 Scion tC 2.4L automatic |
|---|---|
| Set contents | Front, front-right, rear motor mounts and transmission mount |
| Material Type | Alloy Steel, Aluminum |
| Unit count | 4 Count |
This Yllshengyu kit supplies all four mounts you need to replace worn engine and transmission mounts on a 2005–2010 Scion tC with the 2.4L automatic. It is sold as a complete package that directly replaces multiple factory part numbers so you can swap the front, front-right, rear and transmission mounts in one job. In practical use the mounts are machined from metal alloys and meant to control engine movement and damp vibration; buyers report a noticeably smoother ride and reduced engine shake after installation. The set simplifies a full powertrain refresh and avoids sourcing individual pieces. Expect a straightforward bolt‑in install for mechanically competent DIYers or shops, but alignment checks and correct torqueing are still necessary. A few reviews mention occasional fitment holes misaligned on first try, so inspect parts before installation and be prepared for minor adjustments. The kit offers strong value for replacing all mounts at once, provided you confirm exact fitment for your Scion model year and transmission type.
Best for: Practical optimizers who want a single, budget‑conscious solution to restore engine stability and reduce vibration without buying individual parts or paying shop rates.
Less Ideal for: Buyers seeking a factory-brand direct replacement with guaranteed long-term OEM warranty coverage or those unwilling to perform basic fit checks during installation should consider alternatives.
- Complete four-piece kit covers front, front-right, rear and transmission mounts so you can replace the whole powertrain support in one purchase
- Designed to replace multiple factory part numbers for direct-fit replacement on listed Scion tC applications
- Constructed from alloy steel and aluminum for durable mounting and torque control
- Reported to noticeably reduce engine vibration and improve NVH when worn mounts are replaced
- Some customers reported minor alignment issues with bolt holes requiring adjustment during installation
- Not brand OEM so long-term lifespan versus factory parts can vary by driving conditions
Verdict A cost-effective full mount kit that restores engine stability for 2005–2010 Scion tC 2.4L automatics, with good real-world vibration reduction but expect to check fit and alignment during install.
7. loongrie Engine and Transmission Mount Kit, Set of 4
| Compatible vehicle note | Intended replacement for 2014–2019 Corolla 1.8L auto (use fitment tool to confirm) |
|---|---|
| Material Type | Alloy Steel |
| Mounting Type | RM |
| Set | Set of 4 |
This loongrie kit supplies four replacement mounts intended to stabilize the engine and transmission and reduce torsional movement and vibration. It is typically used when worn mounts cause excess engine motion, vibration through the cabin, or driveline clunks. The set is made from alloy steel with a powder-coated finish and includes multiple mount types so you can replace the common wear points in one job. Buyers report straightforward fitment and a secure feel when installed, and the kit’s construction aims to match factory mounting points to restore engine steadiness under acceleration and idle. However, quality reports are mixed: some users praise fit and value while others report poor welds or premature failure on certain pieces, so results may vary between units. Expect a budget-friendly option that can return a firm, quiet ride when the parts you receive meet acceptable build standards, but be prepared to inspect parts before install and keep receipts in case of early problems.
Best for: A balanced all-round buyer seeking a single kit to refresh worn engine and transmission mounts and restore normal NVH and drivability without paying OEM prices.
Less Ideal for: Drivers who prioritize premium, long-term durability or who want guaranteed factory-brand longevity should consider higher-end factory-quality alternatives.
- Complete set of four mounts to replace multiple worn factory pieces in one service visit
- Alloy steel construction and powder-coated finish offer corrosion resistance compared with unfinished replacements
- Designed to match factory mounting points so installation is usually straightforward for a competent DIYer or technician
- Inconsistent build quality reported by some buyers, including weak welds on individual pieces
- Not a branded OEM part so long-term durability may be lower than higher-end factory-quality replacements
Verdict A cost-conscious full kit that can restore engine stability on compatible cars but watch for occasional quality issues and inspect parts before installation.
Choosing the Right Scion xB Engine Mount: Key Factors to Consider
Fitment and Vehicle-Specific Design
Correct fitment is the most important factor because engine mounts must align with factory bolt patterns and engine orientation. A mount designed specifically for the Scion xB reduces installation time and avoids modifications that can compromise safety or introduce stress points.
Vehicle-specific designs also account for engine weight, transmission mounting points, and the geometry that affects how force is transmitted to the chassis. Choosing the right fit reduces the chance of accelerated wear on adjacent components and ensures the mount performs as intended under normal driving conditions.
Material and Construction
Materials determine a mount's resistance to heat, oil, and mechanical fatigue. Rubber compounds are common for vibration damping, while polyurethane or bonded metal designs trade some isolation for increased stiffness and longevity. Consider how exposure to engine oil or road contaminants will affect the chosen material over time.
Construction quality, such as the thickness of bonding layers and robustness of metal brackets, affects failure modes. A well-constructed mount will show consistent material bonding and corrosion-resistant metal finishes to prolong service life.
Vibration Isolation and Ride Comfort
A mount's ability to isolate vibration directly influences cabin comfort and perceived refinement. Softer mounts typically reduce high-frequency buzz and minor shakes, while firmer mounts control larger engine movements at the expense of transmitting more vibration.
Think about your driving priorities: daily commuting and comfort favor better isolation, while performance-oriented needs may prioritize stiffness. The right compromise will minimize audible noise and reduce fatigue on other drivetrain parts.
Torque Control and Load Management
Engine torque creates rotational forces that mounts must resist to prevent excessive movement under acceleration or deceleration. A mount with good torque control maintains alignment between the engine and transmission, reducing strain on driveline components and avoiding clunking or sudden shifts in engine position.
Design features such as internal fluid chambers, dampers, or reinforced brackets can improve torque resistance. Consider the engine's torque output and typical driving habits when judging how robust the torque management needs to be.
Durability and Maintenance Factors
Durability relates to how long the mount will function before showing signs of fatigue, cracking, or loss of damping ability. Frequent exposure to heat cycles, oil leaks, and road debris accelerates aging. Choose designs known for resistance to those stressors.
Maintenance factors include whether the mount is serviceable or requires complete replacement and how easy it is to inspect during routine servicing. Longer-lasting mounts reduce long-term maintenance frequency and the chance of secondary damage to connected components.
Installation Complexity and Serviceability
Installation difficulty affects total labor time and whether you can realistically replace the mount at home or need professional help. Some mounts require engine supports, transmission positioning, or torque on specialized fasteners to achieve correct alignment.
Availability of clear installation instructions, access to replacement hardware, and whether the mount uses standard torque specifications all influence the time and tools required. Factor in the physical access in the engine bay and whether adjacent components must be removed during replacement.
FAQ
What are common symptoms of a failing engine mount on a Scion xB?
Common signs usually include increased vibration in the cabin, especially at idle, noticeable engine movement during acceleration or deceleration, and unusual clunking noises when shifting. You may also feel more drivetrain harshness or notice misalignment that affects throttle response. Symptoms often progress gradually and can vary with engine load and temperature.
Can I replace a Scion xB engine mount myself, and what tools are typically needed?
Many owners with basic mechanical skills can replace a mount, but the task often requires safely supporting the engine, a range of sockets and wrenches, and torque tools to secure fasteners correctly. Some situations need special tools for engine support or access. If you are unsure about safely supporting the engine or following torque procedures, professional help is advisable.
How long do engine mounts usually last on a Scion xB?
Lifespan depends on driving conditions, exposure to contaminants, and material quality, but mounts often last several years under normal use. Heavy urban driving, frequent short trips, or exposure to oil leaks and extreme temperatures can shorten service life. Regular inspection during routine maintenance helps detect early deterioration.
Will a stiffer mount improve performance or just increase noise and vibration?
A stiffer mount can reduce engine movement and improve perceived responsiveness under load, which some drivers prefer for a firmer feel. However, increased stiffness usually transmits more vibration and noise into the cabin. The right choice depends on whether you prioritize isolation and comfort or a more direct mechanical connection.
What should I consider about torque specifications when installing a mount?
Correct torque on fasteners ensures the mount secures properly without causing premature stress or allowing movement that leads to wear. Follow vehicle-specific torque values and tightening sequences to maintain alignment and avoid distortion of mounting brackets. Incorrect torque can lead to accelerated failure or safety issues.
Do signs of engine mount failure always mean the mount must be replaced immediately?
Not always, but progressive symptoms like increasing vibration, visible cracking, or oil-soaked material usually indicate replacement is needed soon. In some cases, temporary measures or inspection can verify if other components contribute to symptoms. Prompt attention helps prevent secondary damage to the drivetrain or adjacent parts.
How We Chose the Best Scion xB Engine Mount
We prioritized parts that offer correct fitment and reliable attachment to the Scion xB chassis, focusing on mounts designed to meet factory fit and orientation. Durability under stress was assessed by considering construction materials and design features that resist oil degradation, heat, and fatigue. Vibration isolation performance was a key filter because passenger comfort and component longevity depend on how well a mount dampens engine movement. Torque control and resistance to rotational movement under load were evaluated to ensure smooth power delivery and reduce driveline strain. Ease of installation and the availability of installation information were also considered since many owners or technicians will replace mounts in modestly equipped shops. We excluded parts that lacked clear vehicle-specific fitment data, mounts designed only for motorsport applications with excessive stiffness, and listings without verifiable material or construction details. The final selection focuses on items that balance isolation, durability, and correct torque management for typical Scion xB use.
Our full evaluation process is outlined in our review methodology.
Conclusion
When choosing a Scion xB engine mount, prioritize correct fitment, appropriate vibration isolation, and sufficient torque control for your driving style. Balance material durability against how much vibration you are willing to accept for stronger torque resistance. Consider installation complexity and long-term maintenance when deciding between designs. Regular inspection and addressing early symptoms will keep drivetrain stress low and extend the service life of surrounding components.
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