Cylinder Head replacement parts for 2025 Yamaha YZ125

OEM Parts Yamaha 2025 Yamaha YZ125 Cylinder Head

CYLINDER HEAD Full screen diagram

Please note: If a part is displayed on the diagram but not shown in the parts list, it is no longer available.

Location	Part Description

1	HEAD, CYLINDER, 1 Part #: B4X-11111-00-00 Required per assembly: 1 ~~$234.99~~ $210.50 - + Add to cart
2	BOLT, STUD Part #: 90116-08027-00 Required per assembly: 5 $4.83 - + Add to cart
3	NUT, CROWN Part #: 90176-08005-00 Required per assembly: 5 $2.91 - + Add to cart
4	WASHER, PLATE Part #: 90201-080L8-00 Required per assembly: 5 $3.94 - + Add to cart
5	O-RING Part #: 93210-63442-00 Required per assembly: 1 ~~$8.49~~ $7.83 - + Add to cart
6	O-RING Part #: 93210-90785-00 Required per assembly: 1 ~~$12.49~~ $11.90 - + Add to cart
7	PIN, DOWEL Part #: 93604-08071-00 Required per assembly: 2 ~~$9.49~~ $8.31 - + Add to cart
8	CYLINDER 1 Part #: B4X-11311-01-00 Required per assembly: 1 $835.61 - + Add to cart
9	GASKET, CYLINDER Part #: B4X-11351-00-00 Required per assembly: 1 ~~$23.98~~ $21.07 - + Add to cart
10	BOLT, STUD Part #: 90116-08031-00 Required per assembly: 2 $11.09 - + Add to cart
11	BOLT, STUD Part #: 90116-08028-00 Required per assembly: 2 ~~$9.49~~ $9.09 - + Add to cart
12	PIN, DOWEL Part #: 99590-10114-00 Required per assembly: 2 Note: (5NY1) $7.73 - + Add to cart
13	NUT Part #: 90179-08019-00 Required per assembly: 4 ~~$8.49~~ $7.13 - + Add to cart
14	PLUG, SPARK, (NGK, BR-9EVX) Part #: BR9-EIX00-00-00 Required per assembly: 1 Note: (94701-00114) S5-018 Sold in multiples of 4 only $18.89 - + Add to cart
15	VALVE ASSEMBLY Part #: B4X-1131D-00-00 Required per assembly: 1 ~~$225.99~~ $203.23 - + Add to cart
16	VALVE ASSEMBLY 2 Part #: B4X-1132D-00-00 Required per assembly: 1 ~~$271.99~~ $203.23 - + Add to cart
17	SCREW Part #: 90149-05001-00 Required per assembly: 4 ~~$8.49~~ $7.61 - + Add to cart
18	SHAFT 1 Part #: 5HD-1131V-00-00 Required per assembly: 1 ~~$91.98~~ $75.18 - + Add to cart
19	LEVER, LINK Part #: 4SS-11832-00-00 Required per assembly: 1 ~~$84.98~~ $69.45 - + Add to cart
20	BOLT, SOCKET Part #: 91317-04010-00 Required per assembly: 1 ~~$9.49~~ $8.93 - + Add to cart
21	HOLDER Part #: 5UN-11395-00-00 Required per assembly: 1 ~~$56.99~~ $48.11 - + Add to cart
22	OIL, SEAL, SO-TYPE Part #: 93104-08040-00 Required per assembly: 1 ~~$16.48~~ $15.22 - + Add to cart
23	COVER Part #: B4X-1131M-00-00 Required per assembly: 1 ~~$42.99~~ $32.93 - + Add to cart
24	PIPE, BREATHER, 1 Part #: 4JY-11166-00-00 Required per assembly: 1 ~~$22.98~~ $20.50 - + Add to cart
25	CLIP (MG5) Part #: 90467-14117-00 Required per assembly: 1 ~~$9.49~~ $8.93 - + Add to cart
26	GASKET Part #: 1C3-11354-00-00 Required per assembly: 1 $6.05 - + Add to cart
27	BOLT, WITH, WASHER Part #: 90119-05008-00 Required per assembly: 4 ~~$1.25~~ $0.82 - + Add to cart
28	SPRING, TORSION Part #: 90508-16134-00 Required per assembly: 2 $6.79 - + Add to cart
29	COLLAR Part #: 90387-08785-00 Required per assembly: 2 ~~$9.49~~ $8.33 - + Add to cart
30	HOUSING 2 Part #: B4X-11992-00-00 Required per assembly: 1 $17.54 - + Add to cart
31	GASKET Part #: B4X-11993-00-00 Required per assembly: 1 ~~$6.49~~ $6.47 - + Add to cart
32	BOLT, HEXAGON Part #: 97027-05020-00 Required per assembly: 3 ~~$3.54~~ $3.50 - + Add to cart
33	WASHER, PLAIN, (646) Part #: 92990-05600-00 Required per assembly: 3 Not Available
34	SEAL, HOUSING Part #: B4X-11995-00-00 Required per assembly: 1 $13.04 - + Add to cart