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XD21
• 12 Volt, A-Circuit, 14.0 Vset
• Delco 20SI, 21SI, 22SI, 26SI, 27SI/Type 200, 30SI, 33SI, 34SI, 35SI, 36SI Series IR/EF Alternators
• Notes - 1-wire system, w/ webbed terminals, w/ stud. Web can be cut to reset voltage.,For heavy duty version use D33
• Replaces - CAT 9L6774, DELCO 1116360, 1116390, 1116433, 1116435, 1116442, 13001740, 1876388, 9343233, D686, D687, D690, FORD F3HS-10316-A, F3HZ-10316-A, GR809
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XD21N-1
• 12 Volt, A-Circuit, 14.0 Vset
• Delco 21SI, 22SI Series IR/EF Alternators
• Notes - 3-wire system, w/o webbed terminals, w/o stud, w/ MOSFET field transistor.,With Flat TempCo,D21N-1 similar to D691 except D691 with Temperature Compensation.
• Replaces - DELCO 10470886, 1116438, 1116439
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XD22
• 12 Volt, A-Circuit, 14.5 Vset
• Delco 20SI, 21SI, 22SI, 26SI, 27SI/Type 200, 30SI, 33SI, 34SI, 35SI, 36SI Series IR/EF Alternators
• Notes - 1-wire system, w/ webbed terminals, w/ stud. Web can be cut to reset voltage.,For heavy duty version use D33-145
• Replaces - CAT 9L6774, DELCO 1116360, 1116390, 1116433, 1116435, 1116442, 13001740, 1876388, 9343233, D686, D687, D690, FORD F3HS-10316-A, F3HZ-10316-A, GR809
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XD27
• 12 Volt, A-Circuit, 14.5 Vset
• Delco 20SI, 21SI, 22SI, 26SI, 27SI/Type 200, 30SI, 33SI, 34SI, 35SI, 36SI Series IR/EF Alternators
• Notes - 1-wire system, w/ webbed terminals, w/ stud. Web can be cut to reset voltage.,For heavy duty version use D33-145
• Replaces - CAT 9L6774, DELCO 1116360, 1116390, 1116433, 1116435, 1116442, 13001740, 1876388, 9343233, D686, D687, D690, FORD F3HS-10316-A, F3HZ-10316-A, GR809
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XD27A
• 12 Volt, A-Circuit, 13.8 Vset
• Delco 10SI/Type 116, 27SI/Type 200, 30SI IR/EF Alternators w/ Voltage Adjustment Block
• Trio activated
• Notes - Without webbed terminals, w/ stud.,To adjust voltage set point use w/ 46-1853 voltage adjustment block and 46-1854 voltage adjustment cap.
• Replaces - DELCO 1116389, 1116406, 1116407, 1894489, D669
