Buick, Olds, Pontiac, GM, Cadillac 1933-1956 underseat heater Core
Buick, Olds, Pontiac, GM, Cadillac 1933-1956 underseat heater Core
Buick, Olds, Pontiac, GM, Cadillac 1933-1956 underseat heater Core
Buick, Olds, Pontiac, GM, Cadillac 1933-1956 underseat heater Core
Buick, Olds, Pontiac, GM, Cadillac 1933-1956 underseat heater Core
Buick, Olds, Pontiac, GM, Cadillac 1933-1956 underseat heater Core
Buick, Olds, Pontiac, GM, Cadillac 1933-1956 underseat heater Core

Buick, Olds, Pontiac, GM, Cadillac 1933-1956 underseat heater Core

HC round underseat accordion

Regular price $799.00

This was presented for duplication as a 1933-1956 Buick round underseat heater core.  We find the same underseat heaters in Oldmobile, Pontiac, and Cadillac.  Price is for a single core.  The cores are under the passenger and driver seat. We make these in a tube and fin core or a time saving/cost saving design with an accordion pattern.

We do not keep this heater core in stock & will need to fabricate it.  Our build queue varies and you should confirm dimensiosn and/or provide a pattern.

Replacement: OD 13 1/2", ID 8 1/2", depth 1" 
5/8" connections with 1 1/4" c-to-c 
Reference Part Nos 3115648, 3122465, 3126103, 3128403, 3130560, 3131633, 3132055

Present Lead times.

Made in the USA

 


 


We make to order. Please allow adequate time for us to build.

Build time estimates [late May 2025]

Model Ts Brass/Black [Our foundry has resumed production and we have begun shipping Model Ts.  We will update the lead times asap]

Model As 9-11 weeks

Heater cores ~6 weeks

Model A and 32 Ford Street rods 8-9 weeks

Common street rods ~12-15 weeks

Tricky customs & complicated restorations ~20 weeks

We appreciate your patience as we continue to recruit and train new fabricators and manage the labor shortfall our country has been experiencing.