Parts in stock
6 Months Factory Warranty
Our OEM radiator caps are engineered for consistent sealing and precise pressure control, keeping your cooling system at the correct operating pressure to prevent boil-over, cavitation, and coolant loss. Each cap is tested to factory specifications for spring rate, valve response, and seal integrity to ensure stable temperatures and dependable performance in harsh conditions. With rugged materials and a factory-backed warranty, these caps help extend coolant and component life, reduce maintenance downtime, and keep engines running efficiently across construction, mining, and on-road applications.
Fit to Models:
Caterpillar 320C, 322C, 324D, 324D FM, 324D FM LL, 324D L, 324D LN, 325D, 325D FM, 325D FM LL, 325D L, 325D MH, 326D L, 329D, 329D L, 329D LN, 330D, 330D FM, 330D L, 330D LN, 330D MH, 336D, 336D L, 336D LN, 336D2, 336D2 L, 340D L, 340D2 L, 345C, 345C L, 345C MH, 345D, 345D L, 345D L VG, 349D, 349D L, 365B, 365B L, 365C, 365C L, 365C L MH, 374D L, M325D L MH, M325D MH, W345C MH