Parts for your 2007 Nissan Navara-Rack boots

2007 Nissan Navara (D40) Rack Boots – What They Do and When to Replace

Based on the Nissan Navara D40 Service Manual (Steering – ST section) and Nissan’s FAST parts catalogue for the D40 platform, the 2007 Navara runs a rack-and-pinion steering gear that uses bellows-style rack boots (often called steering rack gaiters). Aftermarket catalogues for the D40 likewise list dedicated rack boot kits. So yes—rack boots are absolutely fitted and relevant on a 2007 Navara.

On this ute, the rack boots sit at each end of the steering rack, sealing the inner tie rods and the rack from dust, mud, water and road grit. They keep grease in, keep the muck out, and help protect the rack’s internal seals. Given how many Navaras see corrugations, farm tracks and the odd water crossing, those boots do a lot of quiet heavy lifting to stop premature rack wear.

As part of regular servicing, it’s smart to eyeball the boots for splits, perishing, loose clamps, or signs of oil inside the bellows. Power steering fluid pooling in a boot can hint at an internal rack seal leak. If a boot is torn, get onto it quickly, once contaminants get in, the rack and inner tie rod joints can go south fast, turning a cheap boot into an expensive steering rack job.

• Common replacement triggers: visible cracks or tears, oily residue inside the boot, gritty feel or notchiness in steering, and uneven tyre wear from contaminated joints.
• Best practice: replace boots in pairs, use quality clamps (not cable ties), and book a wheel alignment afterwards.

When fitting, match boot length and inner/outer diameters to the D40 rack and tie rod ends. Don’t twist the bellows when tightening clamps, and keep the boot clear of full-lock pinch points. A light, correct-spec grease on the inner tie rod ball is fine unless the manufacturer specifies otherwise. Quality EPDM or TPE boots handle Aussie and Kiwi climates better than the cheap, brittle stuff.

There’s no strict kilometre interval, because lifespan depends on use—some last 5–10 years on-road, while regular off-roaders may need replacements sooner. Quick inspections at every service are the go. Catching a split early keeps the steering tight, protects the power steering system, and saves a packet.

Popular questions about 2007 Nissan Navara rack boots

Do all 2007 Navara (D40) models have rack boots?
Yes. The D40 platform uses a rack-and-pinion steering setup across the range, which requires bellows-style rack boots on both ends. Parts catalogues and the factory service manual for the D40 confirm the presence of “Boot – Steering Gear.”

Can they keep driving with a split rack boot?
They can, but it’s not a great idea. A torn boot lets water and grit into the inner tie rod and rack, which can chew out joints and seals. That can escalate from a simple boot swap to a leaking or worn rack needing overhaul. Best to replace the boot promptly and check for contamination.

Is a wheel alignment needed after boot replacement?
If the outer tie rod end is removed or adjusted, yes—book an alignment. Even if the technician counts turns and refits carefully, a proper alignment protects tyres and ensures the Navara tracks straight.