Package Contains 2 Shocks
Rear pair of two shock absorbers.Bilstein
B8 8100 Bypass Reservoir Shocks Rear Pair
2003-2023 Toyota 4Runner 4WD RWD
$2,564.00
$2,682.00
Coupon Code Available
In Stock
Estimated Delivery in 3-6 Business Days
Bilstein
B8 8100 Bypass Reservoir Shocks Rear Pair
2003-2023 Toyota 4Runner 4WD RWD
$2,564.00
$2,682.00
Coupon Code Available
In Stock
Estimated Delivery in 3-6 Business Days
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Part Numbers & Details
Bilstein 2 Year Warranty
Manufacturer Warranty protects against defects and premature failure.Fits vehicles at factory height or with up to 2" rear lift
For vehicles with no suspension modifications or up to 2" rear lift systemsFits 4WD & RWD vehicles
This product works for 4WD and RWD vehicles.Reservoir Mounts Included
All necessary washers, bushings, and nuts included. Factory shock mounting bolts are reused for installation. An optional billet aluminum reservoir clamp is available for a more clean and compact look.Adjustable Rebound & Compression
Dual tube external bypass offers position sensitive damping with independent adjustment for rebound and compression.Durable Design
60mm large bore hard anodized aluminum piston provides a greater ranger of damping control and long term durability.Bilstein twin-tube technology
Twin-tube shocks utilize double-walled technology, where the piston divides the interior oil chamber into two working chambers. Under load, the piston pushes the oil down through the inner working chamber and up into the outer chamber. During rebound, the oil flows back through the piston valve to create a damping effect.Bilstein Gas-Pressure Technology
Traditional oil shock absorbers, when put under extreme stress, can lead to oil foaming which causes shock fading and results in damping power reduction. In the 1950s Bilstein found the solution to this problem by developing gas-pressure technology.Specifications
| Part Number | Lift/Lowered | Position | Item | Quantity | Extended Length | Compressed Length | Travel | Top Mount | Reservoir | Adjustable Damping | Finish | Boot Included |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 25-326369 | 0-2" Lift | Rear | Shock Absorber | 1 | 24.09" | 14.72" | 9" | STEM | Yes | Double Adjustable Compression and Rebound with Click Adjuster Knobs | EVO Grey | No |
| 25-326376 | 0-2" Lift | Rear | Shock Absorber | 1 | 24.09" | 14.72" | 9" | STEM | Yes | Double Adjustable Compression and Rebound with Click Adjuster Knobs | EVO Grey | No |
Product Details
Bilstein B8 8100 (Bypass) is a direct fit, position sensitive damper specifically designed for light trucks and SUVs. Bypass shock absorbers offer the most compliant ride in all conditions and provide maximum bottom out control when the road gets rough. Utilizing an adjustable external bypass shock is the easiest and most effective way to tune your suspension for ultimate performance. Incremental flow adjuster offers finite and incremental changes in damping force for precise adjustments.
Compatibility List
| Year | Make | Model | Drive | Position | Lift |
| 2023 | Toyota | 4Runner | RWD, 4WD | Rear | 0-2" |
| 2022 | Toyota | 4Runner | RWD, 4WD | Rear | 0-2" |
| 2021 | Toyota | 4Runner | RWD, 4WD | Rear | 0-2" |
| 2020 | Toyota | 4Runner | RWD, 4WD | Rear | 0-2" |
| 2019 | Toyota | 4Runner | RWD, 4WD | Rear | 0-2" |
| 2018 | Toyota | 4Runner | RWD, 4WD | Rear | 0-2" |
| 2017 | Toyota | 4Runner | RWD, 4WD | Rear | 0-2" |
| 2016 | Toyota | 4Runner | RWD, 4WD | Rear | 0-2" |
| 2015 | Toyota | 4Runner | RWD, 4WD | Rear | 0-2" |
| 2014 | Toyota | 4Runner | RWD, 4WD | Rear | 0-2" |
| 2013 | Toyota | 4Runner | RWD, 4WD | Rear | 0-2" |
| 2012 | Toyota | 4Runner | RWD, 4WD | Rear | 0-2" |
| 2011 | Toyota | 4Runner | RWD, 4WD | Rear | 0-2" |
| 2010 | Toyota | 4Runner | RWD, 4WD | Rear | 0-2" |
| 2009 | Toyota | 4Runner | RWD, 4WD | Rear | 0-2" |
| 2008 | Toyota | 4Runner | RWD, 4WD | Rear | 0-2" |
| 2007 | Toyota | 4Runner | RWD, 4WD | Rear | 0-2" |
| 2006 | Toyota | 4Runner | RWD, 4WD | Rear | 0-2" |
| 2005 | Toyota | 4Runner | RWD, 4WD | Rear | 0-2" |
| 2004 | Toyota | 4Runner | RWD, 4WD | Rear | 0-2" |
| 2003 | Toyota | 4Runner | RWD, 4WD | Rear | 0-2" |
Shock Surplus handles Bilstein's warranty claims; if you encounter a product defect please submit a warranty claim.
View Bilstein Warranty Information
For more information: View the Shock Surplus Warranty Policy.
Shipping Info
Free Shipping on most orders to the lower 48 U.S. states. Truck freight items (over 100 lbs) and custom orders require a separate shipping quote.
- Applies to items like axles, leaf springs, and long-travel kits.
- No international shipping on freight items — only to U.S.-based freight forwarders.
- Worldwide shipping available: Canada, Europe, UAE, Australia, and most of Asia.
Contact us for an international shipping quote.
Returns & Exchanges
30-Day Return Policy — Items must be new, unused, uninstalled, and include all original hardware.
- No restocking fees for exchanges or gift card credit.
- 10% restocking fee on refunds, returns cost us real money, so the 10% helps keep the lights on.
- Installed, damaged, or dirty parts cannot be returned.
- Any returns missing hardware or miscellaneous items, the return will be denied and returned to the buyer at the buyer's expense.
Return Shipping Responsibility
CHECKOUT+ Package and Order Protection plan provides prepaid return labels for any returned packages, this fee varies by product.
- Our mistake (misboxed, wrong item, damaged): We cover the cost of return shipping.
- Buyer mistake (wrong item ordered, fitment error, changed mind): Return shipping is the buyer's responsibility - unless CHECKOUT+ Package Protection has been purchased.
- Under 50 lbs: Discounted carrier rate
- Over 50 lbs: Discounted carrier rate + $25 oversize fee
Refunds
Refunds are issued within 5–7 business days of receiving your return.
- Funds typically post to your account in 1–3 business days depending on your payment method.
- There is a 10% restocking fee on all refunds. We don’t get our original shipping, labor, or transaction fees back — so the 10% restocking fee keeps the lights on.
- You will receive an email once your refund is processed.
International Orders
- All international orders are final sale.
- Returns via freight forwarders only accepted if the product hasn’t left the U.S.
- Import taxes, duties, and other possible import-related fees are the buyer’s responsibility and not included in our shipping charges.
- We are not responsible for goods once exported outside the U.S.
Product Details
Whether you want to upgrade, add a reservoir, or find something more affordable, contact us with any questions!
Part Numbers & Details
View full product specifications
Warranty
View warranty coverage
Shipping & Returns
Free shipping within the lower 48 United States
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