| Also known as | E3072 |
| Diagram | Fig. 3 — OIL PUMP AND RELEASE VALVE AND MANIFOLD · ref 1 |
| Subsystem | engine bottom |
| Listed in parts books | 1960–1962 |
PRE-UNIT TRIUMPH OIL PUMP
Oil pump for pre-unit Triumph twins, the mechanical unit that drives oil through the engine's dry-sump system.
This is the oil pump for pre-unit Triumph twins, listed in the parts book under the figure for the oil pump, release valve, and manifold assembly. It's a mechanical unit driven off the engine, and it's the part responsible for pushing oil through the dry-sump system that these motors rely on. If it's worn out or scavenging poorly, you'll see it show up as low pressure, smoky exhaust, or oil ending up somewhere it shouldn't.
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The older parts book number for this one is E3072, same physical pump as 70-3072 — worth knowing if you're cross-referencing an older manual or a parts list with the letter-prefix numbering. Our catalog records place this pump in entries from the early 1960s, so if you're working on a pre-unit twin from around that era this is the pump those records point to.
Given that oil pump failure on these engines tends to be an expensive lesson, it's not a part to guess about. If you're not sure this is the right pump for your particular engine and year, give us a call before you order and we'll help confirm fitment.
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