Chevrolet · Silverado 1500 Custom 4WD Crew Cab Short Bed CK10543 1CX L3B MFC MY2025 US · 2025

Chevrolet Silverado 1500 Silverado 1500 Custom 4WD Crew Cab Short Bed CK10543 1CX L3B MFC MY2025 US Engine code

What are the engine code for the Chevrolet Silverado 1500 Silverado 1500 Custom 4WD Crew Cab Short Bed CK10543 1CX L3B MFC MY2025 US?L3B, GM engine RPO (GM TechLink MY2025 chart)

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At a glance

Vehicle
Chevrolet Silverado 1500 Silverado 1500 Custom 4WD Crew Cab Short Bed CK10543 1CX L3B MFC MY2025 US
Engine code
L3B, GM engine RPO (GM TechLink MY2025 chart)
Manufacturer source
General Motors / GM TechLink
Verified

GM engine RPO code printed in the ENGINE / RPO columns of GM TechLink's 2025 engine oil capacities chart (U.S. and Canada), Silverado 1500 rows.

Reference details

Check before you buy or service: Silverado 1500 Custom 4WD Crew Cab Short Bed CK10543 1CX L3B MFC MY2025 US only. US MY2025 Silverado 1500 Custom equipment group 1CX, model CK10543 4WD Crew Cab; standard L3B/MFC verified in own-model order-guide Mechanical column E and MY2025 VIN p.30. No sibling trim, optional-engine, cab/box, year or market inference.

Source

GM TechLink: 2025 Engine Oil Capacities (With Filter), U.S. and Canada, January 2025General Motors / GM TechLink · en
Open manufacturer source ↗

Last verified by CarFactBook:

Same question · different chassis

Does this answer change on another Silverado 1500?

Engine code is published for these other exact codes. Compare the sourced answer and vehicle scope before using a value.

A matching number does not establish that equipment, trim, production date or regional specification is identical.

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The same question, different cars

Manufacturer documentation can give different answers for different engines, configurations and model codes. These are independently sourced entries for the same reference topic, not interchangeable parts or service instructions.

Chevrolet Silverado 1500Silverado 1500 LT 4WD Crew Cab Short Bed CK10543 2FL L3B MFC MY2025 US2025
Engine codeL3B, GM engine RPO (GM TechLink MY2025 chart)Check the exact variant and source limitationsGeneral Motors / GM TechLink · verified 2026-11-06
Read the sourced answer ↗Vehicle profile →
Chevrolet BlazerBlazer 2LT FWD 2LT LSY M3T MY2025 US2025
Engine codeLSY, GM engine RPOCheck the exact variant and source limitationsGeneral Motors LLC · verified 2026-11-05
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Honda VezelRU32013–2021
Engine codeLEBCheck the exact variant and source limitationsHonda Motor Co. · verified 2026-10-02
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Mazda AxelaBM5FS2013–2017
Engine codeP5-VPSCheck the exact variant and source limitationsMazda Motor Corporation · verified 2026-10-02
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What owners usually check next

12V battery12-volt Absorbed Glass Mat (AGM) battery for the factory Stop/Start system; match the original battery label for replacementSmart-key batteryCR2450 lithium or equivalent battery; insert positive side facing upTransmission fluidDEXRON-HP automatic transmission fluidCoolant capacity11.8 L (12.4 US qt), approximately, for the entire cooling systemFuel tank capacity90.8 L (24.0 US gal), approximatelyEngine displacement2.7 L (GM TechLink MY2025 chart)Powertrain designationL3B 2.7L TurboMax gasoline I4; MFC eight-speed automatic; 4WD (NP0 transfer case)

View every owner answer for Chevrolet Silverado 1500 Silverado 1500 Custom 4WD Crew Cab Short Bed CK10543 1CX L3B MFC MY2025 US →