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Details
| Specification | Value |
|---|---|
| Brand | KONI |
| MPN | 91-2809 |
| Fitting Position | Rear Axle |
| Connector type | 20 x 62 |
OE/OEM numbers (3)
Search by this OE number to find compatible parts
- SCHMITZ CARGOBULL—018187
- SCHMITZ CARGOBULL—D8A91-2640W
- SCHMITZ CARGOBULL—D8K91-2640W
About this product
KONI shock absorber (91-2809) restores factory damping characteristics by controlling spring oscillation on both compression and rebound strokes, recovering steering precision and reducing body roll. Damping configuration — Fitting Position: Rear Axle, Shock Absorber Type: Steel, Connector type: 20 x 62, Shock Absorber Design: Copper — is tuned to the original suspension geometry so spring rates and ride height are unaffected, preserving the manufacturer's comfort and handling balance. Supersedes manufacturer part numbers: 018187, 120025000187, 912798, D8A91-2640W and 1 more. KONI dampers are gas-pressure charged, zero-leakage tested on a servo-hydraulic rig, and carry a 2-year unlimited-mileage warranty against manufacturing defects. Shock absorbers gradually lose damping force over time and should be inspected at 50,000 miles and replaced by 80,000–100,000 miles — even if they are not visibly leaking, internal valve wear reduces their effectiveness. Warning signs include excessive body roll in corners, nose-dive under braking, rear-end squat during acceleration, uneven tyre wear, and a bouncy or floaty ride — a simple bounce test (push down on each corner and release) can reveal weak dampers. Shock absorber replacement is an intermediate DIY task that requires spring compressors (for strut-type assemblies), a torque wrench, and penetrating oil for corroded fasteners — allow 2–3 hours per axle. When selecting shock absorbers, match the damper type (twin-tube, monotube, or gas-pressurised) to the original specification — upgrading to a different type can alter ride height and handling characteristics. Always replace shock absorbers in pairs (both sides of the same axle) to maintain balanced handling, and have the wheel alignment checked afterwards — worn dampers often allow geometry to drift out of specification. Every part is dispatched from our UK warehouse with a 30-day money-back guarantee and free hassle-free returns.
Suitable cars
Vehicle matches are curated from manufacturer data
Confirmed fits based on manufacturer data.Equivalent products (4)
Shock Absorber KONI 91-2809 — compatible car models
| Manufacturer article number (MPN) | 91-2809 |
|---|---|
| OE part numbers | 018187, D8A91-2640W, D8K91-2640W |
Compatibility check
Loading vehicle data…
Please wait while we load vehicle compatibility information.Description and what's included
KONI 91-2809 BTT-Suspension. Connector type: 20 x 62. Fitting Position: HA. Quantity: 1. Shock Absorber Design: 4. Shock Absorber Mounting Type: 1. Shock Absorber Mounting Type: 2. Shock Absorber System: 2. Shock Absorber Type: 1
- 1x Shock Absorber
Shipping, returns, warranty
Free UK delivery on orders over £99.00. Express and standard shipping available.
- Standard delivery: 2-5 business days
- Express delivery: 1-2 business days
- Free returns within 14 days
- All parts backed by manufacturer warranty
Warranty: 12-month manufacturer warranty on all parts. 14-day money-back guarantee if the part doesn't fit your vehicle.
Frequently Asked Questions
Is this Shock Absorber compatible with my car?
Use the vehicle selector at the top of the page to check compatibility. Enter your car's make, model, and engine — we'll confirm whether this Shock Absorber fits. All fitment data is verified through TecDoc.
What specifications does this KONI Shock Absorber have?
This KONI Shock Absorber has the following specifications: Fitting Position: HA; Shock Absorber Type: 1; Connector type: 20 x 62; Shock Absorber Design: 4; Shock Absorber System: 2; Shock Absorber Mounting Type: 1. Check the full specifications table above for complete details.
What OE part numbers does this Shock Absorber replace?
This Shock Absorber replaces OE part numbers: 018187, D8A91-2640W, D8K91-2640W. Cross-reference these numbers with your vehicle's original part number to confirm compatibility.
How much does a Shock Absorber cost?
Shock Absorber prices vary depending on brand, specifications, and vehicle compatibility. Check the current price above for this KONI Shock Absorber. All parts come with our 14-day money-back guarantee.
How do I know when to replace my Shock Absorber?
Look for excessive bouncing over bumps, nose-diving during braking, uneven tyre wear, fluid leaks on the shock body, or poor handling. Shocks should be inspected every 50,000 miles.
What tools do I need to replace a Shock Absorber?
Tools needed: floor jack, axle stands, 18-21mm socket for wheel bolts, spring compressor (if top mount must be removed), 17-19mm open-end spanner for shock piston nut, torque wrench. Difficulty: Moderate DIY. Safety warning: Coil springs store enormous energy -- only use purpose-built automotive spring compressors rated for the load. A spring released unexpectedly can cause fatal injury. Never improvise with non-rated tools.
Can I use this part as a replacement for OE 018187?
Yes, this KONI Shock Absorber is a direct replacement for OE part number 018187. It is manufactured to meet or exceed original equipment specifications, ensuring proper fitment and performance. All cross-reference data is verified through TecDoc.
Is the KONI 91-2809 the same as the KONI 8040-1343SPORT?
No, while both are Shock Absorber parts, they are different products. The KONI 91-2809 has Fitting Position: HA, Shock Absorber Type: 1, Connector type: 20 x 62. The KONI 8040-1343SPORT may differ in dimensions, fitting position, or material composition. Always verify compatibility with your specific vehicle using our vehicle selector, or contact our customer service team for assistance.
Related categories
Common OE numbers for this part
Common original equipment numbers linked to stocked alternatives.
