Description

Nissan 250 1986 Parts Catalog – OEM Factory Parts Index

You’ve got a 1986 Nissan 250 on the lift, and the part you need is nowhere in your aftermarket book. Or you ordered a master cylinder off a listing that said “fits 250” and the bolt pattern was off by three millimeters. I’ve been that guy. Waste of a Friday. This Nissan 250 1986 Parts Catalog stops that. It’s the factory document — 463 pages of what Nissan actually put on the line. If you’ve ever had to argue with a parts counter over a VIN split, you know why OEM matters.

Nissan 250 1986 Parts Catalog: Engine (Y44S) and Powertrain Coverage

Section A covers the Y44S engine. Section E is the powertrain. If you need a timing chain set, oil pan gasket, or the exact transmission mount for the H250 chassis, it’s in there with the factory part number and illustration. The catalog doesn’t guess — it gives you the number that matched the vehicle when it left the Yokohama plant. I’ve had three techs in my shop try to sub a generic water pump on a Y44S. They always leak. Always. The OEM part number from page 23 is what you need.

How to Use the Alphabetical Part Name Index (Page 1-8)

You know what the part is called but not the number. Flip to the Alphabetical Part Name Index. It runs pages 1 through 8 in the back of the catalog. Find “alternator” or “brake booster” and it kicks you to the correct section and figure number. This saves you from reading every page in the Engine Electrical section looking for a voltage regulator. I keep a bookmark on that index in my copy. The manual is divided into ten sections — A through J — plus the indexes. That means you can get in and out fast.

Electrical Systems: Engine Electrical and Body Electrical Sections

Sections B and D are Engine Electrical and Body Electrical. If you are chasing a no-start or a dead blower motor, the wiring connector part numbers and harness clips are here. Aftermarket catalogs often leave out the small bracket or the specific relay. This one doesn’t. The 1986 250 has a unique engine electrical layout for the left-hand and right-hand drive variants — the catalog notes which parts apply to each. Check the chassis number range on page 3 of the manual to confirm your build date. Don’t assume LHD and RHD share every bracket.

Axle, Suspension, and Brake – Factory Specs for Critical Systems

Section F is Axle & Suspension, Section G is Brake. These are the systems where a wrong part number can kill you or your customer. Aftermarket ball joints, bushings, and caliper pins vary in hardness and thread pitch. The factory catalog lists the correct axle shaft, knuckle, and brake hose part numbers for the 250 series. The Brake section includes the master cylinder, proportioning valve, and all hydraulic lines. Use the part numbers from this catalog when ordering — especially if the vehicle has ABS, because the non-ABS and ABS brake line kits are different.

7 Systems Grouped Under General Index: A Through J

The general index on page 4 lays out all ten sections: Engine (Y44S), Engine Electrical, Engine Fitting, Body Electrical, Power Train, Axle & Suspension, Brake, Steering, Body, and Miscellaneous. That’s seven major systems if you combine engine and electrical. The catalog covers every part that Nissan assigned a number to during the 1982-to-1986 production run for the 250. If your truck was built before December 1982, the manual tells you to refer to the 1981 January issue. That kind of honesty? You don’t get it from a third-party PDF.

Get the Right Part Number: Part Number Index on Page 23

Page 23 holds the Part Number Index. If you have a bag of old parts with faded numbers, you can search here to confirm which system they belong to. The index lists every part number in the catalog and points to the section and figure. I use this constantly when I inherit a box of “might fit” parts from a prior job. 95% of the time the number either matches or tells me it’s from a different model. That saves order returns and core charges.

Related manuals that pair well with this parts catalog: Nissan BD3004 1996 Parts Catalog – OEM Factory Parts Index for later Nissan trucks, Nissan 410 Parts Catalog for the early passenger models, and Nissan Motor Murano User Manual – Factory Specs & Safety for modern oddballs. For general automotive context, read the Automotive Industry Overview and check Automotive Battery fundamentals if you’re working on the electrical side.

FAQ

Can I use this catalog for a 1987 model year 250?

The catalog covers vehicles produced from December 1982 through April 1986. For 1987, you need the next edition. The part numbers changed significantly after the 1986 revision.

What is the difference between Section B and Section D?

Section B is Engine Electrical (alternator, starter, ignition). Section D is Body Electrical (lights, switches, wiring harnesses inside the cabin). They are separate because the connector families and routing are different.

Do I need a VIN to use this catalog?

Yes and no. The catalog includes a chassis number range table on page 3. If you know whether your truck is LHD or RHD and whether it is before or after chassis H250 009200, you can narrow the part selection. For exact fit, use the VIN with your dealer.

Is this the same as a service repair manual?

No. This is a parts catalog – it lists part numbers, illustrations, and indexes. It does not contain torque specs, repair procedures, or wiring diagrams. You need a separate service manual for that. But if you are rebuilding an engine, you still need this catalog to order the gasket kit with the correct cylinder head bolt part number.

Factory documentation doesn’t get more direct than this. 463 pages, OEM part numbers, and the indexes you need to find anything on a 1986 Nissan 250. If you work on these trucks, you need this on your bench. Access the Factory Manual now and stop ordering wrong parts.