TRQ Rear Wheel Cylinder W37420
Product description
A rear wheel cylinder is a replacement part, not an upgrade aimed at changing how a vehicle feels or performs. The main buying question here is whether this specific part matches your vehicle.
TRQ lists it for select Toyota Pickup and Previa model years. That makes exact fitment the deciding factor, rather than the part’s general description.
The listing also points to pre-assembled, direct-replacement components and a limited lifetime warranty. Those details are useful, but they don’t replace checking the application chart.

Key points
This TRQ rear wheel cylinder carries reference number W37420 and is listed for 1979–1995 Toyota Pickup and 1991–1997 Previa applications. The year ranges are not a blanket guarantee for every vehicle in those families, so match the specific year and vehicle details against the full compatibility chart before ordering.


TRQ describes its replacement parts as pre-assembled and designed to replace original equipment without modifications. That may simplify the parts-selection side of a repair, but the listing doesn’t provide dimensions or installation steps for this particular cylinder. Because no measurements are given, don’t choose by appearance alone, without that measurement, rely on the vehicle-specific fitment information instead.

The stated limited lifetime warranty covers defects in materials and workmanship when the part is used as intended. Normal wear and tear, misuse, abuse, and unauthorized modification are excluded. It’s a parts warranty, not a promise that the component will suit every vehicle in the listed year ranges.
Best use cases
This part is worth considering when you’re replacing a rear wheel cylinder on a Toyota Pickup or Previa that falls within the listed years, and the compatibility chart confirms the exact application. For example, if you’re gathering parts before starting a repair, check the vehicle’s year and model against the chart first, then use reference number W37420 to confirm you’re looking at the intended component.

It suits you if you want a direct-replacement part and can verify the match before buying. If you’re still diagnosing the brake issue, this listing alone won’t establish that the wheel cylinder is the cause. A broader inspection or professional diagnosis may make more sense before selecting a replacement.


Tips for day-to-day use
Treat fitment as the first check, not an afterthought. The product name gives two vehicle families and year spans, but it doesn’t spell out every configuration. Read the complete compatibility chart and compare it with your vehicle’s details. If the match is unclear, don’t assume that a shared model name is enough.

TRQ also describes a library of DIY replacement videos, with new videos added regularly. That can be a useful starting point for a hands-on repair, but the listing does not confirm that a specific video covers this exact part or your vehicle. Check for a video that matches the job before relying on it for installation guidance.
When it makes sense
This is a focused replacement choice when you’ve confirmed that W37420 fits the exact Toyota application and want a pre-assembled part intended as a direct replacement. Compared with buying a part based only on a broad vehicle-year range, taking a moment to verify the full chart reduces the risk of ordering the wrong fit.



You may want to skip it if you can’t confirm your vehicle’s application, need dimensions to compare against an existing part, or are looking for installation instructions specific to your repair. Those details aren’t included in the product information provided.
Practical doubts
Which vehicles is it listed for?

The listing names 1979–1995 Toyota Pickup and 1991–1997 Previa. Confirm the exact vehicle in the compatibility chart before ordering.
Does it come pre-assembled?
TRQ describes its replacement components as pre-assembled and designed for direct replacement. The listing doesn’t provide additional part-specific installation details.
What does the warranty cover?
The limited lifetime warranty covers defects in materials and workmanship when used as intended. It excludes normal wear and tear, misuse, abuse, and unauthorized modifications.
Products with discounts that might interest you
- EBC SXR165HH Brake Pads
- TRQ W57146 Wheel Cylinder 3/8 Thread
- QUALITY-BUILT Ceramic Front Brake Pads BP1894C
- Bosch Ceramic Disc Brake Pad Set BC1521
- Acinoparts Front Brake Kit 330mm Rotors
- Brembo 09.A538.11 front brake rotor
- Dorman Rear Drum Brake Wheel Cylinder W37625
- EBC Brakes Disc Brake Pads FA618X
- Wilwood Master Cylinder Rebuild Kit 1-1/6-Inch Bore
- QUALITY-BUILT Brake Pads BP1293C
- Raybestos Disc Brake Rotor 980342
- QUALITY-BUILT Ceramic Front Brake Pads BP2304C
- QUALITY-BUILT Ceramic Rear Brake Pads BP1872C
- QUALITY-BUILT Ceramic Brake Pads BP1815C
- QUALITY-BUILT Ceramic Brake Pads BP2176C
- QUALITY-BUILT Ceramic Front Brake Pads BP2076C
- QUALITY-BUILT Ceramic Front Brake Pads BP2195C
- Bendix ceramic front brake pads SBC1645
- GaRhomxy Brake Pedal Stop Pads, 8-Pack
- NICECNC Rear Brake Reservoir Cap, Aluminum
- TRQ Vented Brake Rotor Set
- TRQ Front Ceramic Brake Pads
- TRQ Ceramic Brake Pads
- TRQ Ceramic Front Brake Pads

