Peterbilt Power Steering Reservoir – Replaces 3953866S / Q760236 / Q761939
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DESCRIPTION
Keep your Peterbilt steering system running smoothly with the ROADWEST Power Steering Reservoir. This OE-style tank is designed for Peterbilt trucks that use the listed OE part numbers, making it a direct solution when the original reservoir is worn, cracked, or leaking.
The reservoir is built from OE-grade, high-strength material to withstand heat and vibration in Peterbilt engine bays. Each unit is fully tested for leaks to help ensure stable performance, while the integrated filter offers OE-level filtration to help protect the steering pump and gear from contamination.
Cross Reference / OE Part Numbers (Peterbilt)
- 3953866S
- Q760236
- Q760241
- Q761939
- NMCQ760236
- 5839Q761939
- Q761939FLG
- FGQ761939
Peterbilt Application
- Direct aftermarket replacement power steering reservoir for Peterbilt trucks using the above OE part numbers.
- Acts as a remote-mounted steering fluid tank in the engine compartment (mounting may vary by Peterbilt model).
Key Features
- Peterbilt-focused fitment – Designed for Peterbilt trucks that match the listed OE part numbers.
- OE-grade quality – Engineered to match original equipment fit, function and performance.
- Leak-free performance – Every unit is leak-tested to help ensure dependable operation.
- High temperature and crack resistant – Built to withstand heat and vibration typical of Peterbilt heavy-duty use.
- Integrated filter design – Internal filter provides OE-equivalent filtration to extend steering component life.
| Brand | ROADWEST |
|---|---|
| Product Type | Power Steering Reservoir (Peterbilt) |
| Application | Peterbilt trucks using OE #3953866S, Q760236, Q760241, Q761939 and related numbers |
| OE / Cross Reference | 3953866S, Q760236, Q760241, Q761939, NMCQ760236, 5839Q761939, Q761939FLG, FGQ761939 |
| Material | OE-grade high-strength, heat-resistant material |
| Function | Stores and filters power steering fluid for Peterbilt steering systems |
| Fit Type | Vehicle specific – confirm Peterbilt model and OE numbers before ordering |
| Features | Leak-tested, integrated filter, OE-style fittings, built for heavy-duty use |
| Included Components | 1 × Power Steering Reservoir with integrated filter |
| Manufacturer | ROADWEST |
Note: Please check your Peterbilt’s OE part number to confirm compatibility before placing your order.
Shipping Policy
Shipping Policy
Most ROADWEST orders are processed from our U.S. warehouses within 1–2 business days (Monday–Friday, excluding major U.S. holidays).
We currently ship within the United States only and do not deliver to P.O. Boxes, APO/FPO/DPO addresses, or international addresses.
- Shipping Area: United States only
- Process Time: In-stock items are usually processed within 1–2 business days (Mon–Fri, excluding major U.S. holidays)
- Delivery Method: Standard ground for most items; LTL freight for oversized or extra-heavy parts
- Delivery Time: After shipment, delivery typically takes 3–7 business days, depending on item size, destination, and carrier performance
- Returns: Most unused items may be returned within 30 days of delivery, subject to inspection and our return guidelines
For full details, please review our Shipping Policy and Easy Return & Refund Policy before placing your order.
Warranty
Warranty
ROADWEST stands behind the parts we sell. Unless otherwise stated on the product page, your purchase is covered by a 1-Year Limited Warranty against manufacturing defects under normal use.
What’s covered
- Defects in materials or workmanship
- Premature failure caused by factory-related issues
What’s not covered
- Normal wear and tear, cosmetic aging, corrosion from environment/road salt
- Damage from improper installation, incorrect wiring, modifications, misuse, or accidents
- Labor costs (installation/removal), downtime, towing, or other indirect costs
How to file a claim
Contact us with:
- Order number
- Product name / SKU
- Clear photos or a short video showing the issue
If approved, ROADWEST will provide an appropriate resolution (replacement parts, replacement unit, or refund/credit).
Please do not send items back without return authorization.
For more details, see our Shipping Policy, Easy Return & Refund Policy, and Warranty pages.

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$29.13 USD