1989-1990 S13 240SX KA24E Timing-Chain System and Kit Contents

Supported service chains are 13028-40F01 -> 13028-8B000, 13021-40F01 -> 13021-53J00, 13070-40F04 / 13070-40F05 -> 13070-40F06, 13091-40F02 -> 13091-40F03, 13091-40F10 -> 13091-40F15, 13501-40F80 -> 13501-40F81, 13502-40F10 -> 13502-40F11, 15066-40F01 -> 15066-1S710, 15066-40F11 -> 15066-1S701, 13510-40F00 / 13510-40F10 -> 13510-53J10 and 15010-40F00 -> 15010-40F0A. The catalog's unresolved multi-supersession for 13085-40F00 is not converted into a universal claim. The current 13085-40F10 reinforced-guide and bolt combination is supported as a manufacturer-kit/service selection that still requires exact written KA24E application and installed-hardware verification. Shared chain or sprocket numbers do not prove that a truck, transverse-car, KA24DE or mixed kit has the right guides, tensioner, cover seals, oil-pump boundary or complete 240SX contents.

Decode the VIN/build date and confirm the installed SOHC KA24E before ordering; a 2.4L, KA, S13 or 1989-1997 seller heading is not enough. For an early 1989 car, identify whether the historical Nissan campaign countermeasure tensioner and guide were actually installed; TS89-028C expanded the affected 1989 range to JN1HS36P*KW000001-KW017071 Fastbacks and JN1HS34P*KW000001-KW013885 Coupes, but campaign eligibility or age alone does not prove present condition or completed work. Compare every box against a written contents list: chain, cam and crank sprockets, both guides, tensioner, guide bolts, front crank seal, both cover seals/O-rings and required liquid gasket are separate lines, and neither the front cover nor oil pump should be assumed included. Timing work is engine-critical. Use the applicable factory procedure or a qualified engine professional; establish No. 1 TDC on compression, preserve exact chain/sprocket timing, preload the countermeasure tensioner as directed, protect the cylinder-head-gasket edge, clean and inspect oil passages, front-cover and oil-pump surfaces, inspect the oil pan for broken-guide debris when warranted, renew disturbed seals and fluids, prime lubrication as required and verify oil pressure and leak-free operation before service.

Checked complete and partial paths are materially different. Driftmotion DM412 lists a chain, cam sprocket, crank sprocket, two guides, tensioner, front crank seal and two guide bolts, while expressly excluding two cover seal rings. HDT's OSK set lists one chain, two guides, tensioner and front crank seal but expressly omits sprockets and the other cover seals/O-rings. Z1's exact page is a genuine chain only. Partsology's DNJ TK607 page identifies a premium KA24E timing set but does not provide enough rendered line-item detail to infer every seal, sprocket, bolt, cover or oil-pump part. Manufacturer matrices support the basic 102-link chain, 36-tooth cam sprocket, 18-tooth crank sprocket, tensioner and two-guide architecture, but a shared KA24E application does not prove 240SX-specific front-cover or ancillary contents. Require a brand and kit number, a photographed or written packing list and a return path before purchase.

This guide is only for a US/LHD 1989-1990 S13 240SX with its factory RWD KA24E SOHC engine. Verify engine and build date before ordering because early and late guides, tensioners and front covers have distinct catalog branches, and a 1989 campaign record does not prove the countermeasure parts are still installed. A timing-kit title does not prove sprockets, both guides, guide bolts, cover seals, front crank seal, front cover or oil pump are included. Match the written box contents and exact numbers, and do not infer KA24DE, truck, transverse-car, import or swap interchange. Timing and lubrication work can damage the engine if identity, alignment, tensioner preload, oil passages, cover/pump condition, sealing or debris cleanup is wrong; use the applicable factory procedure or a qualified professional.

Supersede reviewed 19 unique research sources for this guide. 7 also appear above as a seller or official action and are not repeated here; 12 additional citations follow.

Research last verified 2026-07-27.

1. Tech 240sxone — 1989 nissan 240sx service manualOpen source
2. Workshop Manuals — campaign timing chain inspection vin expansionOpen source
3. Workshop Manuals — page 2074Open source
4. Nissan Parts Deal — camshaft valve mechanismOpen source
5. Nissan Parts Deal — camshaft valve mechanismOpen source
6. Nissan Parts Deal — front cover vacuum pump fittingOpen source
7. Nicoclub — changing timing chain ka24eOpen source
8. Am gmb co — GMB TIMINGCHAINKIT CatalogueOpen source
9. Impocali — Referencia de Kit de Tiempo OSK 2018 Ver.2Open source
10. Nissan Parts Deal — oem 1989 nissan 240sx oil pumpOpen source
11. Hdtautoparts — 1989 1990 nissan 240sx ka24e single cam osk timing kitOpen source
12. Partsology — timing chain kit nissan pickup d21 stanza 240sx axxess 89 97 2 4l tk607Open source