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2019 Honda CRF450RX CYLINDER HEAD OEM Parts Diagram

Diagram: F527021
The products below will fit your 2019 Honda CRF450RXAC Select a Different Bike
# Item Price Suggested
Qty The number of times each part appears in the diagram. Not replacing everything? You may need fewer than suggested.
Quantity
1 CYLINDER HEAD ASSY.
12010-MKE-A70
$619.14
Suggested Quantity 1 The number of times each part appears in the diagram. Not replacing everything? You may need fewer than suggested.
View Availability
2 GUIDE, VALVE (OVER SIZE)
12204-MKE-P00
$14.18
Suggested Quantity 2 The number of times each part appears in the diagram. Not replacing everything? You may need fewer than suggested.
View Availability
3 GUIDE, EX. VALVE (OVER SIZE)
12205-MEB-P00
$14.83
Suggested Quantity 2 The number of times each part appears in the diagram. Not replacing everything? You may need fewer than suggested.
View Availability
4 GASKET, CYLINDER HEAD
12251-MKE-A71
$38.02
Suggested Quantity 1 The number of times each part appears in the diagram. Not replacing everything? You may need fewer than suggested.
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5 INSULATOR, THROTTLE BODY
16211-MKE-A00
$14.34
Suggested Quantity 1 The number of times each part appears in the diagram. Not replacing everything? You may need fewer than suggested.
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6 BAND A, INSULATOR
16217-MCJ-000
$8.40
Suggested Quantity 1 The number of times each part appears in the diagram. Not replacing everything? You may need fewer than suggested.
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7 BAND, INSULATOR
16218-MEN-A50
$6.21
Suggested Quantity 1 The number of times each part appears in the diagram. Not replacing everything? You may need fewer than suggested.
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8 NUT, SQUARE (5MM) (GQ51B C)
16222-MV4-300
$2.04
Suggested Quantity 1 The number of times each part appears in the diagram. Not replacing everything? You may need fewer than suggested.
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9 JOINT, WATER
19501-MKE-A00
$20.37
Suggested Quantity 1 The number of times each part appears in the diagram. Not replacing everything? You may need fewer than suggested.
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10 SPARK PLUG (SILMAR9A9S) (NGK)
31909-MEN-A31
$20.36
Suggested Quantity 1 The number of times each part appears in the diagram. Not replacing everything? You may need fewer than suggested.
Available: Ships in 5-7 business days
10 SPARK PLUG (SILMAR10A9S) (NGK)
31910-MEN-A31
$20.36
Suggested Quantity 1 The number of times each part appears in the diagram. Not replacing everything? You may need fewer than suggested.
View Availability
11 SENSOR ASSY., WATER TEMPERATURE
37870-MGS-D31
$46.27
Suggested Quantity 1 The number of times each part appears in the diagram. Not replacing everything? You may need fewer than suggested.
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12 BOLT, FLANGE (10X143)
90001-MKE-A00
$8.85
Suggested Quantity 4 The number of times each part appears in the diagram. Not replacing everything? You may need fewer than suggested.
In Stock: Ships within 24 hours
13 BOLT, FLANGE (7X65)
90003-MKE-A00
$2.87
Suggested Quantity 2 The number of times each part appears in the diagram. Not replacing everything? You may need fewer than suggested.
View Availability
14 BOLT, RECESSED (5X28)
90005-MCJ-000
$1.46
Suggested Quantity 1 The number of times each part appears in the diagram. Not replacing everything? You may need fewer than suggested.
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15 BOLT, SPECIAL (7X45)
90005-MKE-A00
$2.87
Suggested Quantity 2 The number of times each part appears in the diagram. Not replacing everything? You may need fewer than suggested.
View Availability
16 BOLT, FLANGE (6X20)
90020-GHB-660
$2.04
Suggested Quantity 1 The number of times each part appears in the diagram. Not replacing everything? You may need fewer than suggested.
View Availability
17 WASHER, CAMSHAFT THRUST
90446-KRN-670
$2.31
Suggested Quantity 2 The number of times each part appears in the diagram. Not replacing everything? You may need fewer than suggested.
View Availability
18 WASHER, PLAIN (10MM)
90453-MKE-A00
$2.47
Suggested Quantity 4 The number of times each part appears in the diagram. Not replacing everything? You may need fewer than suggested.
View Availability
19 PIN, DOWEL (9X14)
90701-MR7-000
$4.12
Suggested Quantity 2 The number of times each part appears in the diagram. Not replacing everything? You may need fewer than suggested.
View Availability
20 O-RING (19X3) (NOK)
91312-KE7-003
$2.28
Suggested Quantity 1 The number of times each part appears in the diagram. Not replacing everything? You may need fewer than suggested.
In Stock: Ships within 24 hours
21 BOLT, STUD (8X22)
92900-08022-0B
$1.92
Suggested Quantity 2 The number of times each part appears in the diagram. Not replacing everything? You may need fewer than suggested.
Available: Ships in 5-7 business days
22 PIN A, DOWEL (12X20)
94301-12200
$2.05
Suggested Quantity 2 The number of times each part appears in the diagram. Not replacing everything? You may need fewer than suggested.
In Stock: Ships within 24 hours
23 BOLT, FLANGE (6X80) BOLT, FLANGE (6X50)
96001-06080-00
$2.10
Suggested Quantity 1 The number of times each part appears in the diagram. Not replacing everything? You may need fewer than suggested.
View Availability
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The same great policies and service you have come to expect when shopping on RevZilla.com will apply to any OEM purchases made online.

RevZilla is proud to carry every original part available for your 2019 Honda CRF450RX CYLINDER HEAD assembly. Simply reference the OEM parts diagram to confirm the exact part numbers you need. If the assembly calls for more than one of any given part number, it will be noted for you in the suggested order quantity so you can get exactly what you need to get the job done right, the first time. Not quite sure? Feel free to shoot us an email or give us a call to get hands-on help from an OEM parts expert.