A518 [93-UP] Automatic Transmission Bushing

A worn or loose front pump bushing in an automatic transmission allows shaft movement that disrupts hydraulic pressure and accelerates damage to surrounding components. This pump bushing, built with indented oil pockets, is designed for A518, A618, A727, 46RE, 47RH, and 48RE units produced from 1993 on, and addresses that problem directly by restoring proper shaft support at the pump.

The indented oil pockets are the distinguishing feature here. Standard smooth bushings depend entirely on fluid reaching the surface through splash. The pockets in this bushing hold a small reserve of fluid against the shaft, so the lubrication film does not break down during the moments when pressure is lowest. That detail matters most at startup and during low-speed operation when the pump is working hardest.

This is a single piece, not a kit. It does not include seals, gaskets, clutch friction discs, steels, band, or Automatic Transmission Filter. If your rebuild requires those, they need to be sourced separately. The part weighs 1 lb.

Before placing your order, pull the transmission code directly from the unit rather than relying on the vehicle VIN alone. Confirm the code is one of the following: A518, A618, A727, 46RE, 47RH, or 48RE. Also confirm the model year is 1993 or later. If any of those details are uncertain, verify them first. A bushing installed in the wrong housing bore will not fit correctly and will not solve the stock problem.

• Restoring proper pump shaft support reduces fluid loss and helps avoid premature wear on the front pump assembly in these transmission units.
• This listing covers the pump bushing only. It does not include any seals, gaskets, Automatic Transmission Filter, clutch discs, steels, or band. Verify what else you need before ordering.
• The indented oil pockets in this bushing maintain a consistent lubrication film around the pump shaft, reducing metal-to-metal contact during operation.
• One pump bushing with indented oil pockets. Fits A518, A618, A727, 46RE, 47RH, and 48RE units. Item weight: 1 lb.
• Before ordering, confirm the exact transmission code on your unit and the model year falls within 1993 and up. The code should match A518, A618, A727, 46RE, 47RH, or 48RE.

What's in the box

• 1 x Bushing, A727 A518 A618 Pump [W Indented Oil Pockets]

Compatible vehicles

• Fits Ram 1500 1/2 Ton - Pickup [04-06], Ram 1500 1/2 Ton - Van [03-07], Ram 2500 Mega Cab 3/4 Ton - Pickup [06-07], Ram 2500HD 3/4 Ton - Pickup [04-07], Ram 3500 Mega Cab 1 Ton - Pickup [06-09], Ram 3500HD 1 Ton - Pickup [03-09], Ram 4500HD Pickup [05-07].