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O.S. - OSMG5012 OSM22105100 22105100 531028136717 4531028136717
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  Tech Notes

Parts Compatibility

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O.S. Inner Head 21VB (P) V-Spec 21C
O.S. Inner Head 21VB (P) V-Spec 21C
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Parts Saver Eligible:Yes

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Quantity Discount
  Special Savings When Buying in Quantities
Special Stock Number Units at this Price Tower's Low Price Click to Order Quantity Discount Savings
O.S. Inner Head 21VB (P) V-Spec 21C Add to Wish List
84.02  Buy Now 3.96  
O.S. Inner Head 21VB (P) V-Spec 21C Add to Wish List
125.37  Buy Now 6.60  
O.S. Inner Head 21VB (P) V-Spec 21C Add to Wish List
207.85  Buy Now 12.10  

Tech Notes
                 This is the Inner Head (Buttonhead)for the
                       OS Max .21 VZ-B V-SPEC-T engine
    It is the second part of a Two-Part system along with the Outer Head.
  This design allows for easier replacment of both the Inner & Outer parts.

FEATURES: Aluminum construction

INCLUDES: One Inner Head, also known as a "buttonhead."

REQUIRES: None, item is a stock part

SPECS: Diameter: 33mm (1.3") Glow Plug Thread size: M8x.75mm

COMMENTS: If the Outer Head is needed, use OSMG5011 If the Cylinder Head Bolts are needed, use OSMG8673. If the Gasket Set is needed use OSMG6180.

cmb 8/31/04 ir/jxs

– If you need more information, use these O.S. resources –
Web Site:
Phone: 217-398-8970
  Postal Address:

Click here for Units of Measure Conversion Calculators

Parts Compatibility
Parts Compatibility for O.S. Inner Head 21VB (P) V-Spec 21C
This item is a replacement part for the following:
 LXGPF0 O.S. 21VZ-B V-Spec-T (P) ABC w/21J Slide Carb  (Parts List)
 LXSJT3 O.S. Speed 21 VZ-B V-SPEC AL  (Parts List)
 LXWDH4 O.S. 21VZ-B V-Spec II World Edition Off-Road  (Parts List)
 LXPNM7 O.S. OS Speed 21VZ-B V-Spec Engine w/ 21H Slide Carb  (Parts List)

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