Catalog status
Under development
Under development
Parts / Navistar
55-918
APM USA has this part number on file. It is not a current catalog part yet. Use this page as a reference when you contact APM USA.
Reference listing
Reference details for this part number.
Use the measurements and references below when you contact APM USA. This page does not mean the part is stocked, priced, or in production.
Spring group
Multi-leaf
Spring stage
Single stage
Leaf count
11
A-side length (La)
25-1/2"
B-side length (Lb)
28-1/2"
Camber / free arch (C)
6-3/8"
Width / thickness (W)
4 width
This is a reference listing, not a current catalog part. Contact APM USA before discussing price, stock, or timing.
Part details
Part number and references.
Use these numbers when you contact APM USA about this part.
- SRI number
- 55-918
- Catalog status
- Under development
- OEM references
- 277237C92
This is a reference listing, not a current catalog part.
Inquiry
Send this reference page to APM USA.
Send 55-918 to APM USA with the page details attached.
- Part number: 55-918
- Catalog status: Under development
- Vehicle shown: Navistar
- Spring group: Multi-leaf
- Spring stage: Single stage
- Email includes: page link, specs, reference numbers, and any load or weight details shown.
- More than one part? Add each one to the inquiry list and send them together.
Opens an email draft to [email protected] with the page link, status, and specs. Existing customers can keep going in customer login.
Measurement guide
Measure the spring in hand.
Use this as a measuring guide for the spring you removed. It is not a factory drawing for this part.
Selected diagram · Multi-leaf single-stage spring diagram
Multi-leaf single-stage spring diagram
Use this diagram as a measurement guide. Match the letters below against 55-918. This is not a factory print.
La
A-side eye center to center bolt
Lb
B-side eye center to center bolt
C
Camber / free arch at the center bolt
Ø Eye
Spring eye diameter
W
Spring pack width; confirm thickness from the material-size row
#L
Main leaf count in the spring pack
- La A-side length
- 25-1/2" Measure from the front eye center to the center bolt.
- Lb B-side length
- 28-1/2" Measure from the rear eye center to the center bolt. Source length pair.
- C Camber / free arch
- 6-3/8" Measure vertically at the center bolt from the eye-center line to the spring pack.
- W Width / thickness
- 4 width Match this width to the W callout on the removed spring.
- Leaf count
- 11 leaves Count the main leaves in the pack and compare the spring layout.
Before you send it
Check these basics first.
- Check this part number against the spring tag, old invoice, or service record for Navistar.
- Measure the length marks on the removed spring: La / a-side length: 25-1/2"; Lb / b-side length: 28-1/2".
- Check the spring eye hardware before treating this as a match candidate.
- Confirm the secondary checks: C / camber / free arch: 6-3/8"; W / width / thickness: 4 width; leaf count: 11 leaves.
- Vehicle name and OEM numbers help narrow the search. They do not prove fit by themselves.