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Parts for Optima
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![Control Box, EST(S)/ESS [BC-AGS 190x380x130]](https://steamericas.com/wp-content/smush-webp/2026/03/00-70566-300x300.jpg.webp "00-70566")
Control Box, EST(S)/ESS [BC-AGS 190x380x130]
Online Price: $103.8710-03075 -
Control Box, XD/XE
Online Price: $61.7920-03021 -
Control Knob (ver. 2)
Online Price: $2.7820-03039 -
Control Knob Holder (ver. 2)
Online Price: $1.2520-03040 -
Control Panel Sticker, SEII
Online Price: $32.4528-80030 -
SOLD OUT 
Control Panel Sticker, XD/XE
Online Price: $28.5928-80021 -
Control Panel, XD/XE
Online Price: $10.5820-03031 -
![Control Switch Knob [KSM]](https://steamericas.com/wp-content/smush-webp/2026/03/00-70571-300x300.jpg.webp "00-70571")
Control Switch Knob [KSM]
Online Price: $8.8030-03078 -
![Copper Pipe D.4 [P176]](https://steamericas.com/wp-content/smush-webp/2026/03/32-22115-300x300.jpg.webp "32-22115")
Copper Pipe D.4 [P176]
Online Price: $65.6532-22115 -
Copper washer D.13x19x1.5
Online Price: $2.2034-41052 -
![Cross nipple PT1/4F [brass]](https://steamericas.com/wp-content/smush-webp/2026/03/00-71267-300x300.jpg.webp "00-71267")
Cross nipple PT1/4F [brass]
Online Price: $10.9612-20185 -
Cross nipple PT1/4F [SUS]
Online Price: $40.7512-21041 -
Cylinder Cover Spacer Pin, CH.10×67.7 M-M, 5 mm
Online Price: $6.3121-10107 -
Diesel Burner Electrodes
Online Price: $69.8933-34101 -
Diesel Certification Logo Sticker
Online Price: $0.9300-70908-D -
Diesel Steam Vessel/Boiler (ver. 5, DMFs from 2014-2015)
Online Price: $1,999.9921-10114
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