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4.3L MPI ALPHA-BRAVO EC - 1A637496 and Up - Exhaust Manifold and Elbow

Section Drawing: (Hover or click to view larger)



Ref # Part Class Part Number Description Comments Qty Note
1 0000 OEM: 525-8M0053875 MANIFOLD ASSEMBLY Exhaust Port   1  
1 0000 OEM: 525-8M0053876 MANIFOLD ASSEMBLY Exhaust Starboard   1  
2 0019 OEM: 525-19-864689 PLUG Expansion   10  
3 0027 OEM: 525-27-99757, Sierra: 676-18-2909, GLM: 700-32170 GASKET   1  
4 0000 OEM: 525-8M2000229 SCREW (.375-16 x 4.75)   6  
5 0000 OEM: 525-8M0053878 CATALYST   2  
6 0000 OEM: 530-8M2003959 SENSOR Oxygen   4  
7 0000 OEM: 525-8M2004597 BRACKET Cover   4  
8 0010 OEM: 525-10-8M2007128 SCREW (1/4-20) Hex Flange   4  
9 0010 OEM: 525-10-668631 SCREW (.375-16 x 2.500)   4  
10 0000 OEM: 525-879288A19 ELBOW ASSEMBLY No Rise, Port   1  
10 0000 OEM: 525-879288A21 ELBOW ASSEMBLY No Rise, Starboard   1  
10 0000 OEM: 525-879288A25 ELBOW ASSEMBLY 2 Inch Riser (Includes Port & Starboard) 1  
10 0000 OEM: 525-879288A28 ELBOW ASSEMBLY 4 Inch Riser (Includes Port & Starboard) 1  
10 0000 OEM: 525-879288A30 ELBOW ASSEMBLY 6 Inch Riser (Includes Port & Starboard) 1  
11 0027 OEM: 525-27-8M2004606 GASKET Closed Cooling 2  
11 0027 OEM: 530-8M2004414 GASKET Standard Cooling 2  
12 0022 OEM: 525-22-73379, GLM: 700-22379 PLUG (.250-18)   AR  
13 0022 OEM: 525-22-428611, Sierra: 676-18-4265 FITTING Pipe - Brass (.750-14) (Standard Cooling) 2  
14 0019 OEM: 525-19-864689 PLUG Expansion   4  
15 0000 885342002 SENSOR ASSEMBLY   2  
16 0022 OEM: 525-22-866725, GLM: 700-13984 FITTING Straight (.750-14) (Standard Cooling) 2  
16 0022 OEM: 525-22-866725, GLM: 700-13984 FITTING Straight (.750-14) (Closed Cooling) 4  
17 0022 OEM: 530-863786A1 FITTING ASSEMBLY (Standard Cooling) 2  
18 0025 OEM: 525-25-864701 O-RING (1.112 x .103) (Standard Cooling) 2  
19 0030 OEM: 525-30-863129 BALL (Standard Cooling) 2  
20 0000 OEM: 525-862994T FITTING (Standard Cooling) 2  
21 0022 OEM: 525-22-36305T, Sierra: 676-18-8216 ELBOW (Closed Cooling) 2  
22 0022 OEM: 525-22-428611, Sierra: 676-18-4265 FITTING Pipe - Brass (.750-14) (Standard Cooling) 2  
23 0022 OEM: 525-22-866725, GLM: 700-13984 FITTING Straight (.750-14) (Closed Cooling) 2
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