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Details
| Specification | Value |
|---|---|
| Brand | HART |
| Inner Diameter [mm] | 40 mm |
| Outer Diameter [mm] | 52 mm |
| Swirl Type | WD |
OE/OEM numbers (2)
Search by this OE number to find compatible parts
- AUDI / SEAT / VW—014 409 399B
- AUDI / SEAT / VW—014 409 399D
Where this part fits
Original-fit position for OE 014409399D. The red ring marks where this part installs on the vehicle.
About this product
HART Shaft Seal Differential (711 704) is manufactured to OEM tolerances, ensuring a direct-fit replacement that restores your vehicle to factory specification without any modification. Technical specifications — Fitting Position: 251, Inner Diameter [mm]: 40 mm, Outer Diameter [mm]: 52 mm, Swirl Type: WD — are verified against the OEM data sheet to guarantee fitment accuracy and performance parity with the original equipment. Compatible with AUDI, SEAT, VW vehicles; use the vehicle selector above to confirm exact fitment for your make, model, and engine variant. Fitment data is sourced from TecDoc, the authoritative European parts catalogue. This part supersedes original equipment references: 014 409 399B, 014 409 399D. Matching these numbers confirms a like-for-like replacement with no loss of function. HART 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 from our UK warehouse with a 30-day money-back guarantee and free hassle-free returns.
Suitable cars
No equivalent parts found.
Shaft Seal Differential HART 711 704 — compatible car models
| Car models | AUDI: 100 C2 Saloon (431, 433, 434), 100 C3 Saloon (443, 444), 80 B1 Saloon (80, 82), 80 B2 Saloon (811, 813, 814, 819, 853); SEAT: IBIZA II (6K1); VW: GOLF I (17), JETTA I (16), PASSAT B2 (32B), PASSAT B2 Variant (33B), POLO (86), POLO CLASSIC (86C, 80), POLO II (86C, 80) |
|---|---|
| Engines | 1.6; 1.8; 1.3; 1.0; 1.1; 0.9 |
| Year of manufacture | 1972-2002 |
| Manufacturer article number (MPN) | 711 704 |
| OE part numbers | 014 409 399B, 014 409 399D |
Compatibility check
Loading vehicle data…
Please wait while we load vehicle compatibility information.Description and what's included
HART 711704 . Fitting Position: 251. Inner Diameter [mm]: 40 mm. Outer Diameter [mm]: 52 mm. Swirl Type: WD
- 1x Shaft Seal Differential
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 Shaft Seal Differential compatible with my car?
This Shaft Seal Differential fits AUDI, SEAT, VW 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 HART Shaft Seal Differential have?
This HART Shaft Seal Differential has the following specifications: Fitting Position: 251; Inner Diameter [mm]: 40 mm; Outer Diameter [mm]: 52 mm; Swirl Type: WD. Check the full specifications table above for complete details.
What OE part numbers does this Shaft Seal Differential replace?
This Shaft Seal Differential replaces OE part numbers: 014 409 399B, 014 409 399D. Cross-reference these numbers with your vehicle's original part number to confirm compatibility.
How much does a Shaft Seal Differential cost?
This HART Shaft Seal Differential is available for £20.99. Shaft Seal Differential prices vary depending on brand, specifications, and vehicle compatibility. HART parts offer a balance of quality and value, backed by our 14-day money-back guarantee.
How do I know when to replace my Shaft Seal Differential?
Regular inspection of your Shaft Seal Differential 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 Shaft Seal Differential?
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 Shaft Seal Differential fitted by a professional mechanic.
Can I use this part as a replacement for OE 014 409 399B?
Yes, this HART Shaft Seal Differential is a direct replacement for OE part number 014 409 399B. 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.
