Description

ZF 16 S 251 2004 Parts Catalog

You’ve got a ZF 16 S 251 transmission on the bench, and the part you need has worn out. The aftermarket book says “interchangeable,” but you know better. That’s why you need the ZF 16 S 251 2004 Parts Catalog – the exact digital copy of what the ZF engineers put together. 44 pages, original factory data, no guesswork. I’ve been turning wrenches for 28 years, and I’ve seen more wasted hours on bad part orders than on anything else. This catalog kills that problem.

What you get is the spare parts catalogue from ZF Friedrichshafen AG, dated 2004 (CD-ROM ELCAT 1/2004). It covers the 16 S 251 transmission configured for RVI (Renault Véhicules Industriels). The ZF parts list number is 1316 057 023. If you’re working on a 16-speed Ecosplit with a vertical offset, this is the reference you need.

16 S 251 Transmission: What the Catalog Covers

This catalog starts with the technical data sheet that defines the exact variant. Page 2 lists the type number 5010452382, installation position “HOR. LH *FLANGE MOUNTED*”, and the ratio series: 13.80 – 0.84 with splitter groups. You get every gear ratio – G 13.80, 9.49, 6.53, 4.57, 3.02, 2.08, 1.43, 1.00, plus reverse R 12.92, and the crawler gears. The planetary set is I=4.565, 5 gear helical. Control is remote, horizontal LH with plastic formed piping. Synchronizers are bronze-lined for 1st through 4th gear. Input shaft length 109.0 mm, SAE 10C 2, journal D=25.0 mm, shaft diameter 50.30 mm. That level of detail saves you from ordering the wrong pilot bearing.

Section Drawings and Part Numbers

Page 3 lists the actual drawing numbers: installation drawing 1316 600 066, section drawings 1316 057 002, 1316 172 003(0), and 1315 192 100. These are the exploded views you need to locate every seal, bearing, and shift fork. The catalog also specifies auxiliary units like switches (RG closing, NG opening, GP opening, HG opening, GV opening), heat exchanger prep, gearbox venting pipe length 2.20 m, and clutch housing SAE 1 with integrated release cylinder. No aftermarket catalog shows you the exact heat exchanger location – this one does.

Why OEM Specs Matter for Parts Ordering

Aftermarket catalogs cross-reference parts using vague tolerances. One bearing might fit – until it doesn’t. The ZF parts list uses item codes like “A14 CODE: … CUST.SPEC.NO:” and line items for shift lever angle (EP=15 to 20 deg), spring force RG=120 N, detent spring HF=160 N, and gear detent force NG+GG=168 N. When you need a shift lever, you get the exact crank direction and pivot radius: R1=100, cranked to outside. Try getting that from a generic online parts finder. You can’t.

The catalog also details the pulse transmitters – tacho with 6.00 impulses per revolution, installation drawing position 1. If you’re replacing a speed sensor on a 2004 RVI truck, you need the transmitter part number from this book, not a “universal” replacement.

Three Reasons to Use the Factory Parts Catalog

First, the part numbers are direct from ZF – no third-party reprints with lost data. Second, you get the exact assembly instructions for oil fill/overflow (page 3 mentions “OIL FILL+OVERFLOW *HOUSING LEFT+RIGHT”) and the shut-off valve throttle diameter 1.55 mm. Third, the 44-page format is lightweight but dense. You can keep it on a tablet next to the transmission without flipping through a 500-page service manual.

This is not a repair procedure manual. It does not tell you how to rebuild the transmission. For that, pair it with the ZF 16 S 251 Repair Manual – OEM Factory Specs for Ecosplit 16-Speed. The parts catalog and the repair manual together give you every number and every step.

Who Should Buy This Catalog?

If you maintain a fleet of Renault or other European trucks with ZF 16 S 251 transmissions, you need this. Home garage guys pulling a transmission from a wrecked truck also benefit – you can order the correct synchronizer rings and thrust washers instead of measuring and guessing. Professional shops billing by the hour cannot afford to air-freight the wrong bearing. This catalog eliminates that risk.

Related manuals: ZF 16 S 151 16 S 181 16 S 221 16 S 251 Operators Manual – 30 Pages for daily operation, and ZF 16S151 ECOSPLIT III & 16S151 R 2007 Parts Catalog if you work on the earlier 16S151 series. For broader context on transmission technology, read the Automotive Industry Overview and the basics of Automotive Battery – though I admit a battery is unrelated, it shows the type of general knowledge we link to for reference.

FAQ

Can I use this Parts Catalog to rebuild my transmission?

No. This is a parts identification catalog – it lists part numbers, sections, and assembly codes. You need the ZF 16 S 251 Repair Manual for torque specs, clearance checks, and assembly order.

What does the acronym RVI mean on page 1?

RVI stands for Renault Véhicules Industriels. This catalog was made for Renault’s spec. The group is “SG*LL*ANGEFL*DW-WL H-H / RVI” which means splitter group, left-hand angle flange mount, dual rear wheel, horizontal-horizontal control. If your 16 S 251 came from a Renault truck, this is the exact variant.

Bottom line: if you want to order the right part the first time, access the factory manual. No aftermarket shortcuts, no third-party translations, no missing pages. Access the Factory Manual and get back to wrenching.