Description
FP234226 – TYPE 12 DIAPHRAGM
PART NUMBER(S):
Fleet Products: FP234226 | OE: 234226 | Automann: 179.DT12
DESCRIPTION:
Model: Type 12 Air Brake Chamber Diaphragm
Vehicles: Commercial trucks, trailers, and equipment using Type 12 brake chambers
• Stroke: 1.75" (44 mm)
• Diameter: 5.47"–5.50"
• Material: Rubber/neoprene blend, fabric reinforced for high strength
• Operating Temperature Range: -40°F to 212°F
• Compatibility: Fully interchangeable with standard Type 12 rubber and neoprene diaphragms
• Construction: Designed for long service life, gas and oil resistant, optimized for tight air sealing
Applications:
Designed for Type 12 spring and service brake chambers in commercial vehicle air brake systems. Maintains proper pressure sealing performance and durability under extreme duty cycles in fleet and heavy-duty operations.
CROSS-REFERENCE(S):
234226, 234226N, 236664, 802486, BD12, BW234226, 18120, DP12, KN18120, N20168, 060-234226N, E-8889, M461, 12-40012, KN-18120, 2797C1043, 2797D56, 2297D2448, E8889, WAKN18120, RF410015087, 031023, 151-12, 461212, 8012, MDP-4120, 41200, EM41200, 4120, BX234226, 301933R1, 871-930-R, 64SM22, 745-236664, 64-SM-22, 843631, 338458, 1-123, S-5023, PL-D-12, PTD12, T12, GT-5206, 928012, 15112, D12, 4-2-920, TKL24012, AD-17544, 12175, 8017112, 1325347, 234226K, T12 15112, BER234226, BER-234226, 234226C8T, S 234226, MPGS-5023, ATX5023, 234226-RC, GTP234226, ATP5023, 5023SS, VIP234226, 234226HTP, GTS5023, PS234226, TF 234226A cross-reference listing means this part may be a compatible replacement for these part numbers based on OEM or distributor data.
IMPORTANT INSTALLATION NOTES:
✔ Confirm diaphragm diameter (5.47"–5.50") and stroke (1.75") match brake chamber specifications
✔ Use only with certified Type 12 brake chamber assemblies
✔ Follow OEM torque specs and installation procedures
✔ Inspect diaphragm for deformation or aging before installation
✔ For fitment help, contact Fleet Products technical team
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Warranty Information
