Current-facts boundary: This page publishes only the Phase 8 Batch 3 Fourth Build facts approved on 2026-10-07. Missing dimensions, fitment scope, manufacturing responsibility or compliance status are not inferred.
Reviewed Current Facts
Current official RF Lexus LM350 application page documents RF431 as the rear four-piston model in an RF638-front / RF431-rear system.
Required qualification: Model identity qualification: RF431 is published here only as the current rear four-piston RF model evidenced in the reviewed Lexus LM350 RF638-front / RF431-rear application. No internal drawing dimensions or universal fitment are published.
Claim & Scope Limits
- No blanket DOT / FMVSS / CE / CCC statement is made from this evidence.
- Current RF branding or vehicle fitment does not by itself establish JSW manufacturing responsibility.
- No unreviewed model identity, internal drawing dimension, universal specification or universal vehicle fitment is inferred.