Parts for your 2003 Subaru Impreza-Rack boots

2003 Subaru Impreza rack-boots (steering rack bellows)

From the Subaru Factory Service Manual for 2002–2003 Impreza (Section ST: Steering) and Subaru’s electronic parts catalogue (FAST), the 2003 Impreza runs a rack-and-pinion steering gear with bellows-type rack boots on both ends. These are listed as “Boot – Steering Gear” (common genuine Subaru references include 34137FE000/34137FE020, variant-dependent). General repair manuals covering 2002–2011 Impreza models also include procedures for replacing the steering rack gaiters/boots. So rack boots are absolutely used and relevant on the 2003 Subaru Impreza.

On this model, the rack boots do a deceptively big job. They keep road grit, water, and mud off the rack bar and inner tie-rod joints, while helping retain the grease around the inner joint. When a boot splits, muck and moisture can chew out the inner tie-rod and even corrode the rack bar, which can lead to notchy steering, premature seal wear, and power steering leaks. That’s why a quick look at the boots is a smart move at every service—especially if the car sees gravel, wet conditions, or the odd splash through a ford.

Signs it’s time to sort the rack boots:

• Visible cracks or splits in the rubber, or grease/fluid slung onto the subframe.
• Perished clamps or a boot that’s not seated in its grooves.
• Moisture inside the boot or a boot ballooning/collapsing oddly (blocked venting).
• Free play or clunks in the steering—often points to inner tie-rod wear after contamination.

Replacement is straightforward but fussy. The outer tie-rod end usually comes off to slide the boot on and off, so it’s smart to mark the position and count the turns when removing it. Even with careful marking, a proper wheel alignment is recommended afterwards—the toe setting can easily shift. Use quality boots (genuine or reputable aftermarket EPDM) and the correct style clamps, the factory-style band or spring clamps grip evenly and are less likely to cut the boot than a chunky worm-drive clamp. Don’t twist the boot when fitting—centre the rack first, seat the boot fully into the grooves on the rack housing and inner tie-rod, and ensure any breather/venting is clear so the boot can compress and expand as the rack moves.

There’s no need to pack the boot with grease, only apply a light smear to the inner joint if specified by the service manual. If you find power steering fluid inside a boot, that’s a red flag for an internal rack seal leak—time to assess the rack itself rather than just the boot. With fresh, well-fitted boots and good clamps, owners can expect quieter, tighter steering feel and longer life from the rack and inner tie-rods.

How often should the rack boots on a 2003 Impreza be checked?

They’re worth a look at every service or roughly every 10,000–15,000 km. If the car sees a lot of rain, gravel, or off-bitumen driving, have them inspected more frequently. Early catches—like small cracks or loose clamps—are cheap fixes that prevent bigger steering gear dramas.

Do I need a wheel alignment after replacing a rack boot?

Yes, plan on it. Even if the outer tie-rod end is counted back on the same number of turns, the toe can still shift a touch. A quick alignment saves tyre wear and keeps the steering wheel straight.

Can I keep driving with a split rack boot?

It’ll drive, but it’s not a great idea. A torn boot lets water and grit in, which can rapidly wear the inner tie-rod and mark the rack bar. That can snowball into rack seal leaks and a much pricier repair. Replacing the boot sooner rather than later is the sensible move.