Our transmission extension housing seal is the Amaando 402965P, listed for auto and manual gearboxes in the Ford AU, BA, BF and FG Falcon (Sep 1998 to Dec 2014), the BF Fairmont and the NA to BA Fairlane. Any other oil seal is ordered by three sizes: shaft x housing bore x width, in millimetres or inches.
Driving one of those Fords? Check your series in the table below. Anything else: measure the old seal first.
The oil seals we list for engines, gearboxes and mowers
| Seal (as listed) | Where it goes | Vehicles or machines (as listed) | Size (as listed) |
|---|---|---|---|
| 402965P extension housing seal | Rear of the transmission, auto or manual | Ford Falcon AU, BA, BF, FG; Fairmont BF; Fairlane NA to BA | Not stated: measure |
| 402578S front crankshaft seal | Front of the crankshaft | Holden 3.8 V6: Commodore VG and VN to VY, Calais, Caprice VR to WK, Toyota Lexcen | Not stated: measure |
| 403040S rear crankshaft seal | Rear of the crankshaft | Holden 3.8 V6: Commodore and Calais VN to VY, Toyota Lexcen | 3.25 x 3.93 x 0.50 in |
| 401108S rear crankshaft seal | Rear of the crankshaft | Toyota Hilux diesel, 1983 to 2005 | 85 x 105 x 10 mm |
| Rear crankshaft seal for Laser, Telstar, 323, 626, Pajero | Rear of the crankshaft | Ford Laser, Telstar; Mazda 323, 626; Mitsubishi Pajero 2.0 GDI | 89 x 109 mm; width unclear on the listing: measure |
| 402286N transaxle seal, with a 6005-2RS bearing | Left hand transaxle | Ariens Zoom 2552 zero turn mower, model 915083 | 25 x 47 x 7 mm |
Source: our product listings, read 12 October 2026. Inch sizes are as listed; 3.25 x 3.93 x 0.50 in is about 82.6 x 99.8 x 12.7 mm.
All six are in our oil seals or mower parts collections. The front and rear crankshaft seals on the Holden V6 are different parts with different numbers, so don't order one for the other. On belt-driven engines, our timing belt kits list seals among their parts, so check the kit for your engine before buying a front crankshaft seal on its own.
Extension housing seal: which Fords our listing names
The extension housing is the rear of the transmission, and the 402965P is the oil seal that sits in it. Our listing names these cars:
| Model (as listed) | Series (as listed) | Years (as listed) | Engines (as listed) |
|---|---|---|---|
| Falcon, incl. XR6 and XR8 | AU, AU II, AU III | Sep 1998 to Sep 2002 | 4.0 six (incl. LPG), 4.9 V8, 5.6 V8 (XR8 Pursuit ute) |
| Falcon | BA | Sep 2002 to Sep 2005 | 4.0 six (incl. XR6 Turbo, petrol/LPG), 5.4 V8 (incl. Boss 260) |
| Falcon | BF | Oct 2005 to May 2010 | 4.0 six (incl. petrol/LPG) |
| Falcon, incl. XR6 Turbo | FG | Feb 2008 to Dec 2014 | 4.0 six (incl. turbo, petrol/LPG) |
| Fairmont | BF | Oct 2005 to Apr 2008 | 4.0 six |
| Fairlane | NA, NC, NF, NL | Jun 1988 to Feb 1999 | 3.9 and 4.0 six, 4.9 V8 |
| Fairlane | AU, BA | Mar 1999 to Dec 2002; Jul 2003 to Sep 2005 | 4.0 six, 4.9 V8 (AU); 4.0 six, 5.4 V8 (BA) |
Source: our 402965P listing's "Fits" list, read 12 October 2026. Body styles run across sedan, wagon, ute and cab chassis; check your exact line on the listing.
The same seal covers auto and manual in our listing, and no size is printed on it. If you've had the old seal out, measure it (steps below) and send us the three numbers with your car's details, and we'll confirm the match. The listing also says it fits many other Falcon models, so send us your model and series if yours isn't above. We don't list an extension housing seal for any other make, or an extension housing gasket or bush.
Fitting follows Ford's procedure for your model in the workshop manual; we don't publish fitting steps. Without the manual and the tools it calls for, book a mechanic. Our listings say parts "should be fitted by a professional and fitted to vehicle specifications".
How an oil seal size is written
Seal makers write a radial shaft seal's size as three numbers: shaft diameter x housing bore diameter x seal width. A 45 x 62 x 10 seal runs on a 45 mm shaft, presses into a 62 mm bore and is 10 mm wide. Our Hilux rear crankshaft seal, 85 x 105 x 10, reads the same way: an 85 mm shaft, a 105 mm bore, 10 mm wide.
The first number is the shaft, not the hole in the rubber lip. The lip is made to grip the shaft under tension, so measuring the lip of an old seal gives you the wrong figure.
How to measure an old seal
- Look for a number. If the old seal or its packet still shows a part number, send it to us with your vehicle or machine.
- Measure the shaft the seal ran on, with vernier callipers. That's the first number.
- Measure the housing bore, or the outside diameter of the old seal. That's the second number.
- Measure the width of the seal's outer edge. That's the third.
- Note mm or inches. Many of our trailer seals are listed in inches. One inch is 25.4 mm.
- Note the type: rubber or bare metal on the outside, and whether it has a second (dust) lip. Match what came out.
Seal type codes: A, AS, B, BS, C and CS
Most radial oil seals are a rubber lip bonded to a metal case, with a garter spring behind the lip to keep it pressing on the shaft as the rubber ages. The common shapes follow the DIN 3760 and DIN 3761 standards:
| Type | Outside diameter | Extra dust lip? |
|---|---|---|
| A | Rubber covered | No |
| AS | Rubber covered | Yes |
| B | Bare metal case | No |
| BS | Bare metal case | Yes |
| C | Metal case with a second metal insert for stiffness | No |
| CS | Metal case, as C | Yes |
Source: seal makers' published standard types (see Sources), read 12 October 2026.
- Rubber outside (A, AS) seals well against the housing and allows a rougher bore.
- Metal outside (B, C) sits stiffly in the bore and resists popping out, but seals less well against the housing, so thin oils can creep past.
- The S (dust lip) protects the main lip from dust and fine dirt. Seal makers recommend it for dirty conditions.
Our listings don't give these codes. Where they say anything, it's "metal" for some trailer seals, "two-piece" for others, and high temperature silicone for the rear crankshaft seals. Match the old seal's shape and size. Washing machine lip seal kit? We list a Fisher & Paykel lip seal kit for the 425006P and 425009P.
Oil seals aren't the same as the seals inside a sealed bearing. The 2RS or ZZ on a bearing number is its built-in seal or shield: see our bearing seal codes guide.
Trailer and caravan seals
Most of our trailer seals come in pairs or fours, sized as listed:
| Seal (as listed) | For (as listed) | Size (as listed) |
|---|---|---|
| 64607 metal oil seal | 2 and 2.5 tonne caravan and trailer kits (HR30210) | 60.3 x 89.96 x 12.7 mm |
| 33940 | Dexter 2 tonne kits, AU version | 1.937 x 3.375 x 0.5 in |
| 34040 | Dexter 2 tonne kits, US version; Cruisemaster 10-VC kits | 2.250 x 3.375 x 0.5 in |
| 403149N metal seal | Cruisemaster 2 tonne 10-VT kits | 1.875 x 3.00 x 0.375 in |
| 82130 | 2 tonne kits for Kimberley campers with disc brakes | 48 x 85 x 13 mm |
| 400805N | Standard American import trailer kits | 44.45 x 65 x 10 mm |
| 402922N two-piece | Parallel axles, L68149/10 | 1.65 x 2.258/2.48 x 0.51 in |
Source: our seal and kit listings, read 12 October 2026. The 33940 is listed as 1.937 in on the seal-only listing and rounded to 1.93 in on the AU kit listings; the 34040 seal-only listings round 3.375 to 3.37.
For Holden trailer seals, the 401725N two-piece waterproof seals, the 1.5 tonne seal and the ModCon seal, our listings give different sizes in different places, and for the Ford trailer seal they give two different widths. Measure the old seal (shaft x bore x width) and send us the numbers before you order. Our trailer seal pairs and fours, and the caravan and Dexter kits they go in, are in the trailer collection.
Swivel hub seal kits
Our swivel hub seal kits hold axle seals plus the wipers, gaskets and other seals each listing names, for the Landcruiser 80 Series and HZJ105, Landcruiser 40, 60 and 70 Series, GQ Patrol and Maverick, and GU Patrol. The 80 Series kit is a front swivel hub kit; we don't list a rear axle seal kit for the 80 Series. Our GQ Patrol and 80 Series swivel hub guide compares the GQ and 80 Series kits.
Amaando seals
Amaando is the brand on most of our oil seals: the extension housing seal, the crankshaft seals, the trailer seals and the swivel hub seal kits. We list them by the seal's part number and the vehicle, so search our site for the number on your old seal.
Which Bearings Express seal fits
- Pick the 402965P extension housing seal for an AU, BA, BF or FG Falcon, a BF Fairmont or an NA to BA Fairlane, auto or manual.
- Pick the 402578S front crankshaft seal or the 403040S rear crankshaft seal for a Holden 3.8 V6.
- Pick the 401108S rear crankshaft seal for a Hilux diesel from 1983 to 2005.
- Pick the rear crankshaft seal for Laser, Telstar, 323, 626 and Pajero for the 1.8 and 2.0 engines on its list.
- Pick the pair of 64607 metal oil seals for a 2 or 2.5 tonne caravan kit with HR30210 bearings.
Questions people also ask
What is an extension housing seal?
The oil seal at the rear of the transmission, in the extension housing. Ours is the 402965P for the Fords in the table above.
Is the front crankshaft oil seal the same as the rear?
No. On the Holden 3.8 V6 we list, the front seal is 402578S and the rear is 403040S, sold separately.
Do you sell a trailer bearing and seal kit?
Yes: our trailer bearing kits include seals, and we sell the seals on their own too. The trailer wheel bearing guide shows which kit fits.
Related reading
- BA, BF and FG Falcon and Territory rear wheel bearings
- 2RS vs ZZ bearings: what the seal codes mean
- Trailer bearing sizes: Holden, Ford and the other Australian kits
Sources
- Size convention: SKF, Radial shaft seals HMS5 and HMSA10, PUB SE/P8 20069 EN (May 2025), "Clear designation system", https://cdn.skfmediahub.skf.com/api/public/09ae8079f4de6c44/pdf_preview_medium/09ae8079f4de6c44_pdf_preview_medium.pdf, read 12 October 2026.
- Seal types and parts: Trelleborg Sealing Solutions, Rotary Seals catalogue (edition April 2026): selection table p. 28, seal design and garter spring pp. 39 to 40, standard types p. 54, types TRA (DIN 3760 A) p. 55 with ordering example p. 56, TRE (AS) p. 63, TRC (DIN 3761 B) p. 70, TRD (BS) p. 73, TRB (C) p. 75, TRF (CS) p. 79, https://www.trelleborg.com/-/media/tss-media-repository/tss_website/pdf-and-other-literature/catalogs/rotary_gb_en.pdf, read 12 October 2026.
- Bearings Express product listings: the extension housing, crankshaft, transaxle, trailer and swivel hub seal listings and the trailer kits they are compared with, read 12 October 2026.
Checked against seal makers' catalogues and Bearings Express product listings on 12 October 2026.
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