Parts for your 1987 Suzuki Jimny-Power steering pump

1987 Suzuki Jimny (Sierra) Power-Steering Pump — Is it used?

Short answer: a factory 1987 Suzuki Jimny (sold as the Sierra in Australia and New Zealand) does not use a power‑steering pump. Period technical sources list a manual recirculating‑ball steering box with no hydraulic assist, pump, reservoir, or hoses. This is documented in the Suzuki SJ413/Samurai factory service literature of the mid‑1980s, the OEM parts catalogues for SJ410/SJ413, and well‑known repair manuals including Haynes for Suzuki SJ410/413 & Samurai (1982–1994) and Gregory’s Suzuki Sierra (1982–1998). Those references show only a manual steering gear and linkage for the 1987 models, with no provision for a hydraulic pump drive or lines.

Why no pump on a 1987 Jimny/Sierra? Suzuki built these leaf‑sprung SJ models to be light, simple, and tough. At under a tonne kerb weight with narrow tyres and a short wheelbase, they steer acceptably without assist at speed, and the lack of hydraulics keeps things reliable in the bush and easy on fuel. A pump would add parasitic drag, extra plumbing to snag off‑road, more weight over the nose, and extra cost for little day‑to‑day benefit on the skinny rubber these rigs wore from new.

• Simplicity and reliability off‑road — fewer hoses and seals to fail
• Low vehicle mass and narrow tyres reduce steering effort
• Lower parasitic loss and better fuel economy
• Cost and packaging constraints on the SJ platform

Thinking about lighter steering anyway? Aftermarket power‑steering conversions exist, commonly adapting Vitara/Sidekick bits (pump, box, brackets, reservoir, and high‑pressure lines). Quality kits can work well, but they’re a proper modification: expect bracket fabrication, belt alignment checks, cooler and hose routing, and an alignment and bump‑stop check after install. In Australia and NZ, confirm roadworthiness and certification requirements with an engineer or certifier.

For those staying manual, a tidy setup can steer nicely: keep front tyre pressures up, ensure wheel bearings and kingpins are correctly preloaded, grease the front end, check shackle and spring bushes, set toe‑in to spec, and adjust steering box lash per the service manual. Avoid overly wide tyres and excessive offset rims if light steering at parking speeds is a priority.

FAQs

Did any 1987 Jimny/Sierra come with factory power steering?
No. Period factory manuals, parts catalogues, and market spec sheets for 1987 show manual steering only. Some later markets and models gained power assist, but not the 1987 SJ413/Sierra sold in Australia or New Zealand.

Can power steering be retrofitted to a 1987 Jimny/Sierra?
Yes. Common conversions use Suzuki Vitara/Sidekick components or dedicated kits. Budget for proper brackets, a crank pulley arrangement, high‑pressure hoses, and an engineer’s sign‑off where required. Good alignment and bump‑steer checks are essential post‑install.

How can steering effort be reduced without fitting power steering?
Keep front tyres at sensible road pressures, maintain correct kingpin and wheel‑bearing preload, grease the knuckles and linkages, run moderate tyre widths, and ensure toe‑in and steering box lash match the service manual specs.