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Determine Replacement Tappet Size

WARNING: This page is about a different car, the 2010 Chevrolet Aveo. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: Tappet
    GM2049549Courtesy of GENERAL MOTORS CORP.
  1. Remove the old tappet.
  2. Locate the ID number inside old tappet.
  3. Locate the ID number in the following table and record the value.
  4. Perform the following calculation to determine the replacement tappet size.

    Value of removed tappet + measured clearance - nominal value = new tappet size

    Example:

    • ID of old tappet = 20 = 3.20 mm, clearance was 0.31 mm, nominal value is 0.25 mm
    • 3.20 mm + 0.31 mm - 0.25 mm = 3.265 mm
    • 3.265 mm = 27X (ID number) = 55353766 (part number)
Tappet Selection

Part Number ID Number Value (mm)
24465260 04 3.060-3.050
24465261 06 3.050-3.070
24438041 08 3.070-3.090
24438145 10 3.090-3.110
24438146 12 3.110-3.130
24438147 14 3.130-3.150
24438148 16 3.150-3.170
24438149 18 3.170-3.190
24438150 20 3.190-3.210
24438151 22 3.210-3.230
55353764 24X 3.230-3.244
55353765 25X 3.244-3.258
55353766 27X 3.258-3.272
55353767 28X 3.272-3.286
55353768 30X 3.286-3.300
55353769 31X 3.300-3.314
55353770 32X 3.314-3.328
55353771 34X 3.328-3.342
55353772 35X 3.342-3.356
55353773 36X 3.356-3.370
55353774 38X 3.370-3.384
55353775 39X 3.384-3.398
55353776 41X 3.398-3.412
55353777 42X 3.412-3.426
55353778 43X 3.426-3.440
55353779 45 3.440-3.460
55353780 47 3.460-3.480
55353781 49 3.480-3.500
55353782 51 3.500-3.520
55353783 53 3.520-3.540
55353784 55 3.540-3.560
55353785 57 3.560-3.580
55353786 59 3.580-3.600