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AM371T

Exhaust or air cleaner cap (sources disagree) for John Deere M, MI, MT, 40 and 4 more

AM371T → AM34090 ✓2 (current manufacturer number; may not look like the original) Also found as AM467T

Original part (OEM)

Not checked yet

We have not yet confirmed whether the manufacturer still sells it. ✓2 Checked Oct 27, 2026.

PorkForge replacement

Not made yet

No requests yet. Be the first: requests decide what we make.

Part facts

Original part number
AM371T✓2
Manufacturer
John Deere
System
Engine and fuel
Superseded by
AM34090 ✓2
Notes
Cap for John Deere M-family tractors. Deere's store names AM371T an exhaust cap, under exhaust components, with substitute AM34090, while a reseller sells it as an air cleaner cap under AM371T and AM467T for the M, MI and MT, with a second listing for the 40, 320, 420, 330 and 430. A dented example at $30.00 was sold out. Until its position is confirmed, PorkForge treats it as an exhaust part.
Last reviewed
Oct 27, 2026 · record pf-jd-0027

Dimensions How to measure this part

Dimension Value Evidence
Height 4.6 in 117 mm · Listed in product details on the OEM store; not measured by PorkForge; may be a packed size Reported 2
Length 3.3 in 84 mm · Listed in product details on the OEM store; not measured by PorkForge; may be a packed size Reported 2
Weight 0.52 lb 236 g · Listed in product details on the OEM store; not measured by PorkForge; may be a packed size Reported 2

Fits these machines

Model Years Notes Evidence
John Deere M Not recorded — Reported 1
John Deere MI Not recorded — Reported 1
John Deere MT Not recorded — Reported 1
John Deere 40 Not recorded From a second listing on the same reseller's search results page. Reported 3
John Deere 320 Not recorded From a second listing on the same reseller's search results page. Reported 3
John Deere 420 Not recorded From a second listing on the same reseller's search results page. Reported 3
John Deere 330 Not recorded From a second listing on the same reseller's search results page. Reported 3
John Deere 430 Not recorded From a second listing on the same reseller's search results page. Reported 3

Check against your machine’s serial number before ordering.

Where to find one today

We have not found one listed for sale yet.

Why it is hard to get

  • Market evidence: A dented but uncracked example was listed at $30.00 and sold out on 2026-10-27. 1
  • Market evidence: Deere lists substitute AM34090 for AM371T but shows no stock or price without choosing a dealer. 2

Can this part be made again?

Not eligiblePhysical replacement

Deere classes it as an exhaust component, which means heat beyond PLA and PETG limits. If an original shows it is an air-intake cap instead, review again.

Under reviewSTL / FreeCAD file

Not decided yet.

Sources

  1. Vintage John Deere Parts: AM371T, AM467T air cleaner cap for M, MI, MT aftermarket · checked Oct 27, 2026
  2. shop.deere.com product page for AM371T oem lookup · checked Oct 27, 2026
  3. Vintage John Deere Parts: search results for 'cap' aftermarket · checked Oct 27, 2026
Verification checklist (6 of 8 met)
  • ✓ OEM part number verified from a cited source
  • ✓ Cited by two websites, or by an OEM or dealer source
  • ✓ At least one compatible model with a source
  • ✓ 3 kinds of fact beyond the name (dimensions, supersessions, cross-references); 3 needed
  • ✕ Original availability not yet checked
  • ✓ Text and title are distinct
  • ✓ No editorial hold
  • ✕ Not yet reviewed and signed off for search

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AM439T Steering shaft lock knob John Deere M, MI, MT Not checked Not eligible 2
M4338T Gear shift knob (5-speed) John Deere 420, 430, 435, 1010 Not checked Research only 2
M88376 Control adjustment knob (300-series, F900 front mowers) John Deere 318, 420, 430, 655, 755 +11 more Not checked Research only 1
AM371T
Original: not checked yet
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