Your cart is empty
Browse our catalog to find the parts you need.
These images are illustrative and may not match the product exactly. Always verify by part number — or confirm instantly with the assistant using a photo or VIN.

Song Chuan · Electrical & Lighting
178.46502
In stock · ships from Knoxville
This is a 5-pin mini ISO 280 automotive relay designed for 12-volt systems.
Confirm the part fits before you buy. Applications and interchange numbers are researched and audited per part.
Verified fitment for 2 applications
Add your truck to see whether it's one of them
All confirmed applications for this part number.
Freightliner
Freightliner
Commonly found as the blower motor relay on C112 and C120 chassis. Confirm the OEM part number 23-11276-040 or the Song Chuan 898H-1CH-C-R1 equivalent before ordering.
Part data verified against 2 catalog sources
Numbers this part supersedes or interchanges with. Showing 7 of 7.
Different year, make, or config? Get a confirmation against your truck in under a minute.
It’s a SPDT (Single Pole Double Throw) unit with a high-current 50-amp normally open contact and a 30-amp normally closed contact. Typically used as the sleeper cab blower motor relay in certain Freightliner models, it replaces the original Song Chuan 898H series relay when the blower stops working or runs intermittently.
Part Number: 178.46502
RELAY 898H1CHCR1
Vendor: Automann
Dealer: KP Services Crossville
Compatibility, alternatives, and more
Parts commonly needed alongside electrical & lighting