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Details
| Specification | Value |
|---|---|
| Brand | 3RG |
| Inner Diameter [mm] | 44 mm |
OE numbers (2)
Where this part fits
Original-fit position for OE 025860.
About this product
The 3RG Sealing Cap Oil Filler Neck (81240) 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: Inner Diameter [mm]: 44 mm. Each dimension is checked against the OEM reference to ensure the component seats and functions correctly first time. Verified to fit CITROËN, FIAT, LANCIA, PEUGEOT 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: 025860, 025866, 03786, 134005 and 13 more. Matching these numbers confirms a like-for-like replacement with no loss of function. 3RG is a recognised supplier of automotive replacement 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 with tracked delivery and a 14-day money-back guarantee with hassle-free returns.
Suitable cars
Equivalent products (15)
Sealing Cap Oil Filler Neck 3RG 81240 — compatible car models
| Car models | CITROËN: C2 (JM), C3 I (FC, FN), C4 Coupe (LA), C4 I (LC), C4 I Saloon, C4 PICASSO I MPV (UD), C5 I Break (DE), C5 I (DC), C5 II Break (RE), C5 III Break (RW) (+5 more); FIAT: SCUDO Bus (220), SCUDO Van (220); LANCIA: PHEDRA (179), ZETA (22); PEUGEOT: 1007 (KM), 206 Hatchback (2A/C), 206 SW (2E/K), 207 SW (WK), 207 (WA, WC), 307 (3A/C), 307 Break (3E), 307 CC (3B), 307 SW (3H), 308 CC (4B) (+1 more) |
|---|---|
| Engines | 1.4; 1.4 16V; 2.0 16V; 1.8 i 16V; 1.8 16V (DE6FZB, DE6FZE); 1.8 16V (DC6FZB, DC6FZE); 1.8 16V (RE6FYB); 1.8 i 16V (RW6FYC); 1.8 16V (RD6FXC); 1.8 16V; 2.0 i; 2.0; 2.0 (179AXA11, 179AXA1A); 2.0 16V (220AL5); 2.0 CVVT (+1 more) |
| Year of manufacture | 1995-2017 |
| Manufacturer article number (MPN) | 81240 |
| OE part numbers | 025860, 025866 |
Compatibility check
Loading vehicle data…
Please wait while we load vehicle compatibility information.Description and what's included
3RG 81240 . Inner Diameter [mm]: 44 mm
- 1x Sealing Cap Oil Filler Neck
Shipping, returns, warranty
Free UK delivery on orders over £99.00. Tracked standard shipping.
- Standard delivery: 5–9 business days
- Order before 5pm — ships the next working day
- 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 Sealing Cap Oil Filler Neck compatible with my car?
This Sealing Cap Oil Filler Neck fits CITROËN, FIAT, LANCIA, PEUGEOT 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 3RG Sealing Cap Oil Filler Neck have?
This 3RG Sealing Cap Oil Filler Neck has the following specifications: Inner Diameter [mm]: 44 mm. Check the full specifications table above for complete details.
What OE part numbers does this Sealing Cap Oil Filler Neck replace?
This Sealing Cap Oil Filler Neck replaces OE part numbers: 025860, 025866. Cross-reference these numbers with your vehicle's original part number to confirm compatibility.
How much does a Sealing Cap Oil Filler Neck cost?
This 3RG Sealing Cap Oil Filler Neck is available for £12.99. Sealing Cap Oil Filler Neck prices vary depending on brand, specifications, and vehicle compatibility. 3RG parts offer a balance of quality and value, backed by our 14-day money-back guarantee.
How do I know when to replace my Sealing Cap Oil Filler Neck?
Regular inspection of your Sealing Cap Oil Filler Neck 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 Sealing Cap Oil Filler Neck?
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 Sealing Cap Oil Filler Neck fitted by a professional mechanic.
Can I use this part as a replacement for OE 025860?
Yes, this 3RG Sealing Cap Oil Filler Neck is a direct replacement for OE part number 025860. 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.
