- Shop with confidence: competitive prices, exclusive deals, and delivery perks.
- Need it quickly? We dispatch fast-moving parts daily. Check delivery options.
- Swap or return items within the standard return period with a simple process.
- Questions about fitment or orders? Our support team is ready to help.
Similar products
Customers also bought
Details
| Specification | Value |
|---|---|
| Brand | TRW |
| MPN | jcs177 |
| Category | Spring |
| Thickness [mm] | 12 mm |
| Length [mm] | 330 mm |
| Weight [kg] | 1.8 kg |
| Outer Diameter [mm] | 140 mm |
OE/OEM numbers (2)
Where this part fits
Original-fit position for OE 312839. The red ring marks where this part installs on the vehicle.
![SPRING,FRONT,IDENT ZQ (SET) (FOR AIR CONDITIONING) (EXCEPT POLICE VEHICLE) (PRODUCTION NO. 90498952)Примечание:EXC.BAD ROAD PACKAGE — Opel ASTRA-G ( 1998 - 2010) — K FRONT AXLE AND SUSPENSION › 90.HATCH,SALOON,ESTATE (F08,F35,F48,F69) (X12XE[LW4] ENGINE WITH MANUAL TRANSMISSION)](/_next/image?url=https%3A%2F%2Fcdn.carparts247.co.uk%2Fdiagrams%2Foem%2Fopel%2Ft98%2Ff480dd90b76addff%2F11x.webp&w=3840&q=75)
About this product
The TRW Spring (JCS177) is a professional-grade replacement component engineered for long service life and reliable operation across all conditions your vehicle encounters. The part is built to the following specification: Thickness [mm]: Zinc mm, Length [mm]: 330 mm, Weight [kg]: Steel, Carbon kg, Outer Diameter [mm]: 140 mm. Each dimension is checked against the OEM reference to ensure the component seats and functions correctly first time. Verified to fit OPEL, VAUXHALL models. All compatibility data is cross-checked against the TecDoc database — select your vehicle to confirm the part matches your specific engine and year. This part supersedes original equipment references: 20432, 2240078, 23227, 3 12 839 and 26 more. Matching these numbers confirms a like-for-like replacement with no loss of function. TRW is a recognised supplier of automotive suspension components to independent workshops and dealer networks across Europe. All parts are sourced from authorised distribution channels and carry full manufacturer traceability — you receive exactly the same component supplied to professional garages and dealer workshops. If fitment or specifications do not match your vehicle, our technical team can help identify the correct alternative — use the vehicle selector or contact us with your VIN for a guaranteed-fit recommendation. Replacing worn components on schedule preserves your vehicle's safety, reliability, and resale value — and aftermarket parts from established brands deliver OEM-equivalent performance at a fraction of the dealer price. Every part is dispatched from our UK warehouse with a 30-day money-back guarantee and free hassle-free returns.
About TRW
TRW Automotive, with roots dating back to 1901 in Cleveland, USA, is a global leader in safety-critical automotive components, now part of ZF Friedrichshafen. TRW specialises in brake pads, brake discs, steering components, suspension parts, and engine valves. As an OE supplier to virtually all major global car manufacturers, TRW products meet the highest safety and performance standards. Trusted by vehicle makers for over a century, TRW delivers braking and steering components that prioritise safety without compromise.
Suitable cars
Equivalent products (28)
Show all 28 OE numbers
Spring TRW JCS177 — compatible car models
| Car models | OPEL: ASTRA G Convertible (T98), ASTRA G Estate (T98), ASTRA G Hatchback (T98), ASTRA G Saloon (T98), VECTRA B Estate (J96), VECTRA B Hatchback (J96), VECTRA B (J96), ZAFIRA A MPV (T98); VAUXHALL: ASTRA Mk IV (G) Convertible (T98), ASTRA Mk IV (G) Estate (T98), ASTRA Mk IV (G) Hatchback (T98), ASTRA Mk IV (G) Saloon (T98), VECTRA (B) Estate (J96), VECTRA (B) Hatchback (J96), VECTRA (B) Saloon (J96) |
|---|---|
| Engines | 1.8 16V (F67); 1.4 16V (F35); 1.4 16V (F08, F48); 1.4 16V (F69); 1.6 i 16V (F35); 1.6 i 16V (F68); 1.6 i 16V (F19); 1.6 LPG (F75); 1.8 16V; 1.4 16V; 1.8 i 16V (F35) |
| Year of manufacture | 1995-2009 |
| Manufacturer article number (MPN) | JCS177 |
| OE part numbers | 3 12 839, 90512997 |
Compatibility check
Loading vehicle data…
Please wait while we load vehicle compatibility information.Description and what's included
TRW jcs177 Spring. Length [mm]: 330 mm. Outer Diameter [mm]: 140 mm. Thickness [mm]: 12 mm. Weight [kg]: 1,8 kg
- 1x Spring
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 Spring compatible with my car?
This Spring fits OPEL, VAUXHALL vehicles. Use the vehicle selector at the top of the page to check exact compatibility — enter your car's make, model, and engine for a confirmed fitment match. All fitment data is verified through TecDoc.
What specifications does this TRW Spring have?
This TRW Spring has the following specifications: Thickness [mm]: 12 mm; Length [mm]: 330 mm; Weight [kg]: 1,8 kg; Outer Diameter [mm]: 140 mm. Check the full specifications table above for complete details.
What OE part numbers does this Spring replace?
This Spring replaces OE part numbers: 3 12 839, 90512997. Cross-reference these numbers with your vehicle's original part number to confirm compatibility.
How much does a Spring cost?
This TRW Spring is available for £38.99. Spring prices vary depending on brand, specifications, and vehicle compatibility. TRW parts offer a balance of quality and value, backed by our 14-day money-back guarantee.
How do I know when to replace my Spring?
Regular inspection of your Spring is recommended as part of routine vehicle maintenance. Watch for changes in performance, unusual noises, or visual signs of wear. Consult your vehicle's owner manual for manufacturer-recommended replacement intervals specific to your make and model.
What tools do I need to replace a Spring?
Tools required vary by vehicle make and model. Generally, a basic socket set, screwdrivers, and vehicle-specific tools may be needed. We recommend consulting a workshop manual for your specific vehicle, or having the Spring fitted by a professional mechanic.
Can I use this part as a replacement for OE 3 12 839?
Yes, this TRW Spring is a direct replacement for OE part number 3 12 839. It is manufactured to meet or exceed original equipment specifications, ensuring proper fitment and performance. All cross-reference data is verified through TecDoc.
Related categories
Common OE numbers for this part
Common original equipment numbers linked to stocked alternatives.
