What does this gasket do?

It seals the bolted joint at the pump's back cover between two mating faces to prevent leakage of fluid or pressure. The 16-hole pattern aligns with the back-cover bolt holes.

What reference part number does it replace?

It is an aftermarket replacement gasket interchangeable with FMC Bean part A91676. The brand and number are for identification and fit comparison only and do not indicate original-manufacturer production.

Gasket Backcover 16 Hole for FMC Bean L11/W11 Series

Gasket Backcover 16 Hole for FMC Bean L11/W11 Series — Gasket aftermarket replacement part

This 16-hole back-cover gasket seals the bolted joint at the back cover of FMC Bean L11 and W11 series reciprocating pumps, preventing leakage of fluid or pressure across the mating faces. The 16-hole pattern matches the back-cover bolt circle. It fits the FMC Bean L11, L1114SC, L1118SC, W11, W1122BCD, R660 and Bean 435 pumps, and is interchangeable with FMC Bean reference A91676.

What it is

A gasket seals a bolted or clamped joint between two faces to prevent leakage of fluid, oil or pressure.

Pump compatibility

BEAN 435
L11
L1114SC
L1118SC
R660
W11
W1122BCD

Specifications

Property	Value
Weight	0.06 lb (≈ 0.03 kg, converted)
Width	36.8 cm
Height	31.8 cm
Depth	0.2 cm

Manufacturer technical notes

Back Cover Gasket 16 Hole FMC Bean L11/W11 Series (SKU:A91676) NBR rubber composite fiber (tensile strength ≥18MPa, temperature range -35℃~120℃) with vulcanization process (crosslinking ≥90%), API 7K mud pump compliant, seal groove clearance ≤0.0015", compatible with L1122 470/W1122 435 models, in-stock and ships within 3 days

Verbatim from the Dongli product page on dlhddrilling.com.

Replacement / interchange

Aftermarket replacement cross-referencing FMC Bean A91676.

FAQ

Which pumps does this back-cover gasket fit?: It fits the FMC Bean L11, L1114SC, L1118SC, W11, W1122BCD, R660 and Bean 435 pumps.
What does this gasket do?: It seals the bolted joint at the pump's back cover between two mating faces to prevent leakage of fluid or pressure. The 16-hole pattern aligns with the back-cover bolt holes.
What reference part number does it replace?: It is an aftermarket replacement gasket interchangeable with FMC Bean part A91676. The brand and number are for identification and fit comparison only and do not indicate original-manufacturer production.

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All brand names, model numbers and part numbers are used for identification and cross-reference only and do not imply original-equipment manufacture. This is an aftermarket replacement part.

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