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Firwin removable and reusable insulation blankets are specially designed to fit around manifolds, turbochargers, elbows, “Y” adaptors, pipe sections, flexes and fittings. Our insulating blankets are fitted and laced together using special stainless steel wire. Other fastening methods are available upon request.

Listed below are some of the more popular models for which we have existing design patterns. Note that this list is not exhaustive, as we are adding models on a constant basis. If you cannot find the specific model you are looking for, please contact us directly.
Caterpillar Engine Insulation (FCAT2346Z)
Unit of Measure
1 2 3 
Image FCAT524Z
379T: ; Complete Blanket Set
CAT 399 FCAT544Z
398T/399T: ; Complete Blanket Set
Image FCAT575Z
C-12: ; Complete Blanket Set
Caterpillar Engine Insulation (FCAT588Z) FCAT588Z
C-13 Two Stage: ; Complete Blanket Set
Caterpillar Engine Insulation (FCAT596Z) FCAT596Z
C-15: ; Complete Blanket Set
Caterpillar Engine Insulation (FCAT608Z) FCAT608Z
C-18 (ACERT): ; Complete Blanket Set
C27, C32 Charge Air FCAT621-12Z
C-27: Charge Air piping; Complete Blanket Set
C32 Charge Air FCAT620-12Z
C-32: Charge Air piping; Complete Blanket Set
C32 Acert (FCAT618-12Z) FCAT618-12Z
C-32/C-27: ; Complete Blanket Set
CAT C-4.4 FCAT642Z
C-4.4; Complete Blanket Set
Caterpillar Engine Insulation (FCAT554Z) FCAT554Z
C-9; (W bosses); Complete Blanket Set
Caterpillar Engine Insulation (FCAT559Z) FCAT559Z
C-9 (NO bosses); Complete Blanket Set
Caterpillar Engine Insulation (FCAT3964Z) FCAT3964Z
D334; Complete Blanket Set
CAT353 FCAT515Z
Cat D353T: ; Complete Blanket Set
Caterpillar Engine Insulation (FCAT229Z) FCAT229Z
3406, Round Flange, Complete Blanket Set
CAT 3054C (Forward Outlet) FCAT108Z
3054C NEW (Pk 1104A/C/D, C4.4); Complete Set
CAT 3056E FCAT054Z
3056E; Complete Blanket Set
3406 WATERCOOLED (FCAT231-08Z) 01.jpg FCAT231-08Z
3406: WATERCOOLED (w/ Turbo); Complete Set
3046 SITA GAS (FCAT232-08Z) 1.JPG FCAT232-08Z
3046 SITA GAS (FCAT232-08Z)
CAT 3406 (FCAT225Z).jpg FCAT225Z
3046 SQUARE FLANGE FCAT225Z
3412 Single Turbo Watercooled  FCAT2371-6Z.JPG FCAT2371-6Z
3412: Single Turbo Watercooled (Gas); Complete Set
CAT 3512 Dual Staggered.JPG FCAT3638Z
CAT 3512 Dual Staggered Turbo (FCAT3638Z)
CAT3512 Dual Watercooled (FCAT3670-39Z).JPG FCAT3670-39Z
3512: DUAL WATERCOOLED; Complete Set
3512 HO Engine Photo.JPG FCAT3649HZ
3512: HIGH OUTPUT; Complete Set
Unit of Measure
1 2 3