🛠️ ELRING 804.850 — REAR CRANKSHAFT SEAL WITH HOUSING — PTFE — VW AUDI SKODA — 3YR WARRANTY
Brand: ELRING • MPN: 804.850 • EAN: 4041248051320 •
Type: Rear main seal (crank) with housing • Material: PTFE/ACM • Swirl: Left-hand twist •
Includes: Mounting sleeve • Warranty: 3 Years • SKU: A4103
⭐ Why Buy from B&B
• Trusted UK motor-factor • 3-Year Warranty • Fast Dispatch • 60-Day Returns
✅ 3-Year Warranty │ 🇬🇧 UK Seller │ 🚚 Fast Delivery │ 📦 60-Day Returns
Genuine Elring 804.850 rear crankshaft oil seal with housing for a wide range of VW/Audi/Škoda/SEAT petrol & diesel engines,
plus selected Volvo applications. Latest-spec PTFE sealing lip with left-hand twist for stable sealing at crank speed.
Supplied with mounting sleeve for correct installation. Ideal when replacing clutches/flywheels, gearboxes or repairing rear main leaks. Message us with your REG/VIN for fast confirmation.
🔍 PRODUCT FEATURES
- 🧩 Direct OE-style: Rear crank seal with housing for quick, reliable replacement
- 🧪 PTFE / ACM materials: High-temp, low-friction sealing for long service life
- ↩️ Left-hand twist (SP design): Controls oil return at crank rotation
- 🧰 Includes guide sleeve: Prevents lip damage during installation
- ✅ 3-Year Warranty • 60-Day Returns
Mechanic Tip (PTFE seals): Install dry — do not oil the sealing lip. Use the supplied mounting sleeve, keep the
lip clean, and avoid rotating the crank backwards during first start. Tighten housing fasteners to the manufacturer torque specification. If the seal is disturbed after fitting, replace it again.
Difficulty: ★★★☆☆ (Intermediate) • Typical Time: 1–3 hours (gearbox/clutch access dependent)
🧩 TECHNICAL DETAILS
| Brand / MPN | ELRING — 804.850 |
| Type | Radial shaft seal (rear main) with housing |
| Design | SP • Left-hand twist |
| Material | PTFE (polytetrafluoroethylene) / ACM (polyacrylate rubber) |
| Inner / Outer Ø | 85.0 mm / 131.0 mm |
| Thickness | 16.0 mm |
| Included | Mounting sleeve (guide) |
| Fitting Position | Rear — housing at gearbox side |
| Weight | ~0.20 kg |
| Warranty | 3 Years |
| EAN | 4041248051320 |
| SKU | A4103 |
📇 OEM & CROSS-REFERENCE NUMBERS (Selection)
OEM (VAG/Volvo typical):
AUDI/VW/SEAT/ŠKODA 026 103 171 B • 028 103 171 • 028 103 171 B • 028 103 171 K • 068 103 171 F/G •
VOLVO 9438594.
Aftermarket refs (ID only):
FEBI 36382 / 37745 • SWAG 30937745 • VICTOR REINZ 81-90000-00 / 809000000 • GOETZE 5031944800 •
AJUSA 71000600 / 71001200 / 71008000 • MAHLE 67750 • MEYLE 100 103 1011 • VAICO V10-2266 •
PAYEN LK5006 • ELWIS ROYAL 8456001 • CORTECO 20033462B.
Numbers are for identification only — supplied item is Elring 804.850 (rear crank seal with housing).
🚗 VEHICLE COMPATIBILITY
Unsure? Message us with your REG/VIN for fast confirmation.
▶ Click to expand full model list
- AUDI: 80/90 (B2–B4), 100 (C2–C4), 200 (C2–C3), A4 B5, A6 C4/C5, Cabriolet B3, Coupe B2/B3, Quattro (85)
- SEAT: Alhambra (7M) • Arosa (6H) • Cordoba (6K) incl. Vario • Ibiza II (6K) • Inca (6K9) • Toledo I (1L2)
- ŠKODA: Felicia I/II (6U) incl. Estate/Pickup • Octavia I (1U2/1U5)
- VOLVO: S70 (874) • V70 II (285)
- VW: Caddy/Caddy II (6K/9K/9U) • California T4 • Corrado (53I) • Golf I–IV Cabrio & II–III platforms • Jetta II •
LT I & LT II variants • Lupo (6X/6E) • Passat B2–B5 • Polo (86C/6N/6V) & derivatives • Santana (32B) • Sharan (7M) •
Transporter T3/T4 ranges • Vento (1H2)
Note: Engine codes and flange styles vary. This kit is the rear crank seal with housing. If unsure, send your VIN — we’ll verify before dispatch.
🧑🔧 ASK THE MECHANIC — FAQ
Q: Is oil needed on the PTFE lip?
A: No. Fit the lip dry and use the guide sleeve.
Q: Do I need to replace flywheel bolts?
A: Often recommended (many are stretch-type). We stock OE-spec replacements — see cross-sell below.
Q: Torque figures?
A: Tighten to manufacturer specification.
Q: Will this fit my engine?
A: Send your REG/VIN — we’ll confirm the correct seal/housing variant.
🔗 Engine & Sealing bundle • Flywheel bolts • Clutch kits
Share with your technician:
“ELRING 804.850 Rear Crankshaft Seal with Housing — PTFE — Left-hand twist — with mounting sleeve — 3-Year Warranty — A4103.”
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✅ 3-Year Warranty • ✅ Fast Dispatch • ✅ 60-Day Returns
Message us before purchase if unsure — we’ll confirm fitment with your REG/VIN.
B & B Components — Family-run, 50+ years
Unit 11 Granville Road, Maidstone, Kent, ME14 2BJ
Hours: Mon–Fri 07:00–15:00 • Sat 09:00–13:00
Elring 804.850 rear crankshaft oil seal with housing PTFE left hand twist SP design mounting sleeve A4103 4041248051320 026103171B 028103171 028103171B 028103171K 068103171F 068103171G Volvo 9438594 rear main seal RMS VW Audi Skoda Seat PTFE dry install flywheel bolts clutch kit
Febi 36382 37745 Victor Reinz 81-90000-00 809000000 Goetze 5031944800 Mahle 67750 Ajusa 71000600 71001200 71008000 Meyle 100 103 1011 Vaico V10-2266 Payen LK5006 Corteco 20033462B
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