When the front pump on an A500, 42RE, 40RH, or 42RH automatic transmission starts leaking, the fix requires more than swapping a single seal: the gasket, the o-ring, the metal-clad seal, and the bushing all need to come out together so the pump goes back in with a clean, properly supported bore. This four-piece set addresses exactly that scope: one 14-hole front pump gasket for the retro early configuration, one front pump o-ring, one A606 front metal-clad seal with flange, and one bronze pump bushing, nothing added and nothing left out.
Each piece in the box was placed there individually and checked against the parts list before the box was sealed, so what you read on the label is what you will find inside. That list ships with the box.
A few things this set does not cover: clutch friction discs, steels, the Automatic Transmission Filter, bands, and any other internal components are not included. If your job calls for those parts, source them separately before starting the teardown.
On the technical side, the 14-hole gasket is specific to the early retro pump face found on A904 and A500 family units. The A606 metal-clad seal includes a flange; confirm that detail against the bore you are working with. The bronze bushing supports the pump rotor and is not interchangeable with later bushing styles used on different pump generations.
Application runs from 1972 forward on the listed units. Before placing the order, verify the exact transmission code stamped on your unit, the pump bolt-hole count, and confirm the A606 seal with flange is the correct front seal for your specific build. At 1 lb shipped, this set covers the front pump perimeter and nothing beyond it.
- Leaking or worn front pump seals cause pressure loss and slippage; replacing the gasket, o-ring, seal, and bushing together addresses the full pump perimeter in one pass.
- This set covers the front pump only and does NOT include clutch discs, steels, Automatic Transmission Filter, bands, or any other internal components. Review your parts list before ordering.
- The bronze bushing and metal-clad seal are specific to front-pump rebuilds on A500, 42RE, 40RH, and 42RH units; the 14-hole gasket fits the early retro-style configuration of those pumps.
- Box contains exactly 4 pieces: 1 A904/A500 front pump 14-hole gasket (retro/early), 1 A904/A500 front pump o-ring, 1 A606 front metal-clad seal with flange, 1 A904/A500 pump bronze bushing. Ships at 1 lb.
- Before ordering, confirm your transmission code (A500, 42RE, 40RH, or 42RH), verify the pump has the 14-hole bolt pattern, and check whether the A606 front metal-clad seal with flange matches your unit configuration.
What's in the box
- 1 x Seal, A606 Front [With Flange]metal CLAD
- 1 x Gasket, A904 A500 Front Pump [14 Hole] [Retro S Early]
- 1 x Pump, A904 A500 Front O-ring
- 1 x Bushing, A904 A500 Pump [Bronze]
Compatible vehicles
- Fits Dakota [88-03], Ram 1500 [94-01], Durango [98-00], Grand Cherokee [93-04], Ram 50 [90-93], Ramcharger [90], W150 [89-93], W250 [90-93], D150 [89-93], D250 [90-93], D350 [90-93], B150 [90-94], B250 [88-94], B350 [88-94], B1500 [95-97], B2500 [95-97], Mighty Max [90-96].
| seal pump kit A500 |
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