Suction Pipe

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Water Pump Suction Pipe connects to the front the engine block, and is the inlet for the the cooling system.

Overview

Part Numbers

Regular 1200 uses a straight pipe.

21045-18000 PIPE-SUCTION WATER PUMP
21045-H2300 PIPE-suction, water pump GX

The GX water pump inlet pipe at front of block (PIPE-suction, water pump) has an additional hose fitting for the manifold coolant hose.

Regular B210 uses a pipe with one small hose connection.

21045-M0100 A12S B210
21045-M0800 A12T B210
21045-H8400 A14T B210 [looks like A12T pipe]

A14T uses a pipe with two small hose connections.

21045-H8400 A12S.Sedan,A12S.Coupe,A14.V,A13,A15
21045-H8410 A14S.Sedan,A14S.Coupe with AT, A15S
21045-M0100 B310 Van <> 21045-M0110

Left: 21045-H8400. Right: 21045-M0100

Removal

The suction pipe is a press fit into the block. Put vice-grips on it and tap the vice-grips until the pipe comes out.