Exhaust Elbows
Intermediate Exhaust Elbow Kit
IMPORTANT: Standard sterndrive applications with through‑the‑propeller exhaust require an intermediate exhaust elbow kit.
See the following table for your specific application.
Riser Exhaust Elbow Kit
Intermediate Exhaust Elbow Kit
(Order Separately)
0 mm (0 in.)
879288A19 (port)
879288A21 (starboard)
879288A34
51 mm (2 in.) 8M0104209 879288A35
102 mm (4 in.) 8M0104210 879288A36
153 mm (6 in.) 8M0104211 879288A37
Riser Kits
NOTE: Some riser kits require additional hose kits.
51 mm (2.0 in.) Riser Kit for Emissions Control and Non‑ECT Exhaust Manifolds (8M0104209)
Qty.
Description Part Number
1 Exhaust elbow, port, 51 mm (2.0 in.) 8M8027593
1 Exhaust elbow, starboard, 51 mm (2.0 in.) 8M8027594
2 Elbow‑to‑manifold gasket—seawater cooling 27‑8M2004414
2 Elbow‑to‑manifold gasket—closed cooling 27‑8M2004606
2 Brass pipe plug (0.750‑14) 22‑428611
2 Plug O2 sensor (non‑ECT) 8M0082363
2 Copper washer (non‑ECT) 8M0097283
102 mm (4.0 in.) Riser Kit for Emissions Control and Non‑ECT Exhaust Manifolds (8M0104210)
Qty.
Description Part Number
1 Exhaust elbow, port, 102 mm (4.0 in.) 8M8027598
1 Exhaust elbow, starboard, 102 mm (4.0 in.) 8M8027599
2 Elbow‑to‑manifold gasket—seawater cooling 27‑8M2004414
2 Elbow‑to‑manifold gasket—closed cooling 27‑8M2004606
2 Brass pipe plug (0.750‑14) 22‑428611
2 Plug O2 sensor (non‑ECT) 8M0082363
2 Copper washer (non‑ECT) 8M0097283
153 mm (6.0 in.) Riser Kit for Emissions Control and Non‑ECT Exhaust Manifolds (8M0104211)
Qty.
Description Part Number
2 Exhaust elbow, 153 mm (6.0 in.) 8M8027595
2 Elbow‑to‑manifold gasket—seawater cooling 27‑8M2004414
2 Elbow‑to‑manifold gasket—closed cooling 27‑8M2004606
2 Brass pipe plug (0.750‑14) 22‑428611
2 Check ball fitting assembly (90°) 8M2012292
2 Cover bracket O2 sensor 8M2004597
2 Screw, 1/4‑20 hex flange 8M2007128
2 Plug O2 sensor (non‑ECT) 8M0082363
2 Copper washer (non‑ECT) 8M0097283
Exhaust Elbow Removal
1. Turn the engine off and allow it to cool.
Manifolds and Elbows
90-8M0099748 eng DECEMBER 2015 © 2016 Mercury Marine Page 7B-7